#include <bits/stdc++.h>
using namespace std;
using ll=long long;
int main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	int n;
	cin>>n;
	n/=11;
	string s;
	cin>>s;
	if(s[s.size()-n-1]=='#')cout<<"KCPC"<<endl;
	else cout<<"KUPC"<<endl;
}