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