#include <iostream>

using namespace std;

int main() {
    string name = "";
    getline(cin, name);

    bool isValid = true;

    double totalNames = 0;
    double validNames = 0;
    double invalidNames = 0;

    while (true) {
        isValid = true;
        totalNames++;

        if (name == "Statistic")
            break;

        for (int i = 0; i < name.length(); i++) {
            if (!isalpha(name[i])) {
                cout << "Invalid name." << endl;
                invalidNames++;
                isValid = false;
                break;
            }
        }

        if (isValid) {
            validNames++;

            name = to_string(toupper(num[0]));

            cout << name << endl;
        }

        getline(cin, name);
    }
}