#include <bits/stdc++.h>
using namespace std;

int main() {
    string s;
    cin >> s;
    bool a = false;
    if (s[0] == 'A' and s[1] == 'U') {
        for (int i = 2; i < s.size(); ++i) {
            if (s[i] == 'A' and s[i+1] == 'A' and (s[i+2] != 'U' or s[i+3] != 'T')) {
                cout << "Glycine";
                i++;
                a = true;
            }
            else if (s[i] == 'A' and s[i+1] == 'T' and (s[i+2] != 'U' or s[i+3] != 'T')) {
                cout << "Cysteine";
                i++;
                a = true;
            }
            else if (s[i] == 'T' and s[i+1] == 'U' and (s[i+2] != 'U' or s[i+3] != 'T')) {
                cout << "Arginine";
                i++;
                a = true;
            }
            else if (s[i] == 'U' and s[i+1] == 'A' and (s[i+2] != 'U' or s[i+3] != 'T')) {
                cout << "Serine";
                i++;
                a = true;
            }
            else if (s[i] == 'U' and s[i+1] == 'U' and (s[i+2] != 'U' or s[i+3] != 'T')) {
                cout << "Lysine";
                i++;
                a = true;
            }
            if (s[i] == 'T' and s[i+1] == 'A') break;
            if (s[i] == 'T' and s[i+1] == 'T') break;
        }
    }
    if (!a) cout << "None";
    cout << endl;
}