#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<ll,ll> P;
#define REP(i,n) for(ll i=0;i<ll(n);i++)












int main(void){
	cin.tie(nullptr);  ios_base::sync_with_stdio(false);
	ll i,j;






	string s="#...#.#####";



	ll N;
	cin >> N;


	ll k=N/11;
	vector<string> v(N);
	REP(i,N) cin >> v[i];

	bool f=true;
	REP(i,N){
		if(v[0][i]==s[i/k]) continue;
		else{
			f=false;
			break;
		}

	}


	if(f) cout << "KCPC" << endl;
	else cout << "KUPC" << endl;









	return 0;

}