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atualizando pasta cap04
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‎.gitignore‎

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node_modules
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package-lock.json
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package.json

‎cap04 copy‎

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‎cap04/ativ4_1.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<link rel="stylesheet" href="style.css">
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<title>PROGRAMA PAR OU IMPAR</title>
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</head>
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<body>
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<img src="img/exerc.jpg" alt="hora">
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<h1>Programa par ou ímpar</h1>
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<form>
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<p>Número:
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<input type="number" id="inNumero" required>
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</p>
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<p>
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<input type="submit" value="Verifique se é par ou ímpar">
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</p>
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</form>
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<h3></h3>
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<script src="ativ4_1.js"></script>
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</body>
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</html>

‎cap04/ativ4_1.js‎

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const frm = document.querySelector("form");
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const resp = document.querySelector("h3");
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frm.addEventListener("submit", (e) => {
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e.preventDefault()
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const num = Number(frm.inNumero.value);
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if (num % 2 == 0) {
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resp.innerText = `${num} é par`
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} else {
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resp.innerText = `${num} é impar`
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}
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})

‎cap04/ativ4_2.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<link rel="stylesheet" href="style.css">
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<title>Programa verifica velocidade</title>
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</head>
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<body>
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<img src="img/exerc.jpg" alt="hora">
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<h1>PROGRAMA VERIFICA VELOCIDADE</h1>
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<form>
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<p>Velocidade permitida:
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<input type="number" id="inVelocidadeP" required>
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</p>
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<p>Velocidade do condutor:
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<input type="number" id="inVelocidadeC" required>
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</p>
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<p>
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<input type="submit" value="Verificar velocidade">
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</p>
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</form>
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<h3></h3>
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<script src="ativ4_2.js"></script>
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</body>
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</html>

‎cap04/ativ4_2.js‎

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const frm = document.querySelector("form");
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const resp = document.querySelector("h3");
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frm.addEventListener("submit", (e) => {
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e.preventDefault()
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const velocidadePermitida = Number(frm.inVelocidadeP.value);
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const velocidadeCondutor = Number(frm.inVelocidadeC.value);
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if(velocidadeCondutor <= velocidadePermitida){
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resp.innerText = `Situação: Sem multa.`
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}else{
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const maisVinte = velocidadePermitida * 1.2
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if(velocidadeCondutor <= maisVinte ){
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resp.innerText = `Situação: Multa leve.`
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}else{
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resp.innerText = `Situação: Multa grave.`
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}
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}
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});
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‎cap04/ativ4_3.html‎

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<!DOCTYPE html>
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<html lang="pt-br">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<link rel="stylesheet" href="style.css" >
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<title>Programa Parquímetro</title>
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</head>
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<body>
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<img src="img/exerc.jpg">
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<h1>Programa Parquímetro</h1>
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<form>
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<p>Valor R$:
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<input type="number" id="inValor" required>
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</p>
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<p>
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<input type="submit" value="Confirmar deposito">
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</p>
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</form>
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<h3></h3>
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<h4></h4>
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<script src="ativ4_3.js"></script>
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</body>
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</html>

‎cap04/ativ4_3.js‎

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const frm = document.querySelector("form");
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const resp1 = document.querySelector("h3");
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const resp2 = document.querySelector("h4");
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frm.addEventListener("submit", (e) => {
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e.preventDefault() // evita envio do form
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const valor = Number(frm.inValor.value) // obtém número digitado no form
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// caso valor insuficiente
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if (valor < 1.00) {
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alert("Valor Insuficiente (no mínimo, R$ 1.00)")
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frm.inValor.focus()
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return
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}
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// declara variáveis
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let tempo
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let troco
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// cria as condições para verificar tempo e troco
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if (valor >= 3.00) {
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tempo = 120
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troco = valor - 3.00
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} else if (valor >= 1.75) {
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tempo = 60
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troco = valor - 1.75
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} else {
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tempo = 30
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troco = valor - 1.00
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}
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// exibe as respostas
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resp1.innerText = `Tempo: ${tempo} min`
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if (troco > 0) {
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resp2.innerText = `Troco R$: ${troco.toFixed(2)}`
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}
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})

‎cap04/ativ4_4.html‎

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<!DOCTYPE html>
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<html lang="pt-br">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<link rel="stylesheet" href="style.css">
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<title>Programa lado do triângulo</title>
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</head>
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<body>
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<img src="img/exerc.jpg" alt="hora">
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<h1>PROGRAMA LADO DO TRIÂNGULO</h1>
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<form>
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<p>Lado A:
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<input type="number" id="inLadoA" min="1" required>
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</p>
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<p>Lado B:
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<input type="number" id="inLadoB" min="1" required>
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</p>
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<p>Lado C:
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<input type="number" id="inLadoC" min="1" required>
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</p>
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<p>
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<input type="submit" value="Verificar Lados">
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</p>
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</form>
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<h3 id="simOunao"></h3>
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<h3 id="hehe"></h3>
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<script src="ativ4_4.js"></script>
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</body>
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</html>

‎cap04/ativ4_4.js‎

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const frm = document.querySelector("form");
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const resp1 = document.getElementById("simOunao");
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const resp2 = document.getElementById("hehe");
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frm.addEventListener("submit", (e) => {
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e.preventDefault()
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const ladoA = Number(frm.inLadoA.value);
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const ladoB = Number(frm.inLadoB.value);
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const ladoC = Number(frm.inLadoC.value);
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if(ladoA >= ladoB + ladoC || ladoB >= ladoA + ladoC || ladoC >= ladoA + ladoB){
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resp1.innerHTML = "Lados não podem formar um triângulo";
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} else {
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resp1.innerHTML = "Lados podem formar um triângulo";
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if (ladoA === ladoB && ladoA === ladoC){
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resp2.innerHTML = `Tipo: Equilátero`;
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} else if(ladoA === ladoB || ladoA === ladoC || ladoB === ladoC){
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resp2.innerHTML = `Tipo: Isóceles`;
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} else {
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resp2.innerHTML = `Tipo: Escaleno`;
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}
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}
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})

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