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

#define rep(i, a, b) for(int i = a; i < b; i++)
using ll = long long;

int main(){
	int n;
	cin >> n;
	vector<string> s(n);
	rep(i, 0, n) cin >> s[i];
	int k = n / 11;
	vector<string> t{
		"#...#.#####",
		"#.##..#....",
		"##....#....",
		"#.##..#....",
		"#...#.#####",
		"...........",
		"####..#####",
		"#...#.#....",
		"####..#....",
		"#.....#....",
		"#.....#####",
	};
	vector<string> ss(11, string(11, ' '));
	rep(i, 0, n) {
		rep(j, 0, n) {
			int ii = i / k, jj = j / k;
			ss[ii][jj] = s[i][j];
		}
	}
	if(ss == t) {
		cout << "KCPC" << endl;
	} else {
		cout << "KUPC" << endl;
	}
}