#include <iostream>
#include <string>

using namespace std;
int main(){
    string s; cin >> s;
    int i,n;
    for(i=0;i<5;i++){
        s[i] = toupper(s[i]);
    }
    if(s.size()>6) exit(1);
    if(s[0]!='I') exit(1);
    cout << s << endl;
}