#include <bits/stdc++.h> using namespace std; int main() { char a; cin>>a; int sum = int(a); if(sum >= 65 && sum <= 96) { cout<<"upper"<<endl; } else if(sum >= 97 && sum <= 122) { cout<<"upper"<<endl; } else if(sum >= 48 && sum <= 58) { cout<<"digit"<<endl; } return 0; }