#include <iostream>
#include <string>
#include <cctype>
using namespace std;

class StringConverter {
    private:
    static int count;
    
    public:
    static string convertString(string str) {
        for (char c : str) {
            if (!isalpha(c) &&  c != ' ') {
                return "Invalid input";
            }
        }
        
        count++;
        string result = "";
        for (char c : str) {
            result += toupper(c);
        }
        return result
    }
    
    static int getCount() {
        return count;
    }
};

int StringConverter :: count = 0;

int main() {
    int c;
    cin >> n;
    cin.ignore();
    
    for (int i = 0; i < n; i++) {
        string str;
        getline(cin, str);
        cout << StringConverter :: convertString(str);
    }
    return 0;
}