public static Scanner sc = new Scanner(System.in);

public static void main(String[] args) {

sc.nextInt();

while (sc.hasNext()) {

String str = sc.next();

boolean isRCXY = false, flag = false;

char prev = ' ';

for (char c : str.toCharArray()) {

if (c >= '0' && c <= '9' && (prev >= 'A' && prev <= 'Z')) {

if (flag) {

isRCXY = true;

break;

} else {

flag = true;

}

}

prev = c;

}

if (isRCXY) {

String[] arr = str.substring(1).split("C");

int row = Integer.parseInt(arr[0]), col = Integer.parseInt(arr[1]);

StringBuilder colStr = new StringBuilder();

while (col > 0) {

if (col % 26 == 0) {

colStr.append('Z');

col /= 26;

col--;

} else {

colStr.append((char) (col % 26 + 'A' - 1));

col /= 26;

}

}

System.out.println(colStr.reverse().toString() + row);

} else {

int startIndex = 0;

for (int i = 0; i < str.length(); i++) {

if (str.charAt(i) >= '0' && str.charAt(i) <= '9') {

startIndex = i;

break;

}

}

String colStr = str.substring(0, startIndex);

int row = Integer.parseInt(str.substring(startIndex));

int col = 0, base = 1;

for (int i = colStr.length() - 1; i >= 0; i--) {

col += (colStr.charAt(i) - 'A' + 1) * base;

base *= 26;

}

System.out.println("R" + row + "C" + col);

}

}

}

}