#include <bits/stdc++.h>
using namespace std;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int N; cin >> N;
    string s; cin >> s;
    int check = 9;
    check *= N/11;
    if(s.at(check) == '#') cout << "KCPC\n";
    else cout << "KUPC\n";
}