#include <cmath>
#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
using namespace std;
const string s = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
bool check(string str)
{
    return (str[0] == 'R' && str[1] > '0' && str[1] < '10');
}
int main()
{
    int T;
    cin >> T;
    while (T--)
    {
        string str;
        cin >> str;
        bool isRC = check(str);
        if (isRC)
        {
            int len = str.size();
            int pos;
            for (int i = 0; i < len; i++)
            {
                if (str[i] == 'C')
                {
                    pos = i;
                    break;
                }
            }
            int row = 0;
            for (int i = 1; i < pos; i++)
            {
                int t = str[i] - 48;
                row = (row * 10 + t);
            }
            int col = 0;
            for (int i = pos + 1; i < len; i++)
            {
                int t = str[i] - 48;
                col = (col * 10 + t);
            }
            int j = 0;
            int t[101]; // 留有疑问
            for (; col; col = col / 26 - !(col % 26))
            {
                if (col % 26)
                    t[++j] = col % 26;
                else
                    t[++j] = 26;
            }
            for (; j; j--)
            {
                cout << s[t[j] - 1];
            }
            cout << row << endl;
        }
        else
        {
            int len = str.size();
            int pos;
            for (int i = 0; i < len; i++)
            {
                if (str[i] > '0' && str[i] <= '9')
                {
                    pos = i;
                    break;
                }
            }
            int row = 0;
            for (int i = pos; i < len; i++)
            {
                int t = str[i] - 48;
                row = (row * 10 + t);
            }

            int col = 0;
            int cnt = 0;
            for (int i = pos - 1; i >= 0; i--)
            {
                int t = str[i] - 'A' + 1;
                col += (pow(26, cnt++) * t);
            }
            cout << "R" << row << "C" << col << endl;
        }
    }
    return 0;
}