#include <bits/stdc++.h> using namespace std; int main() { char n; cin >> n; if(n>='A' && n<='Z'){ cout << "A"; }else if(n>='a' && n<='z'){ cout << "a"; }else if(n>='0' && n<='9'){ cout << "0"; }else{ cout << "other"; } return 0; }