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