#include "testlib.h"
#include <bits/stdc++.h>
using namespace std;
 
const int MAX_Y = 1'000'000'000;
const int MAX_N = 100;
const int MAX_A = 10'000'000;

const vector<string> kcpc = {
"#...#.#####",
"#.##..#....",
"##....#....",
"#.##..#....",
"#...#.#####",
"...........",
"####..#####",
"#...#.#....",
"####..#....",
"#.....#....",
"#.....#####"
};
const vector<string> kupc = {
"#...#.#...#",
"#.##..#...#",
"##....#...#",
"#.##..#...#",
"#...#.#####",
"...........",
"####..#####",
"#...#.#....",
"####..#....",
"#.....#....",
"#.....#####"
};

int main(int argc, char* argv[]) {
    registerValidation(argc, argv);
    int N = inf.readInt(11, MAX_N, "N");
    inf.ensuref(N%11 == 0, "invalid N");
    int k = N/11;
    inf.readEoln();
    vector<string> S(N);
    for(int i = 0; i < N; i++)
    {
        S[i] = inf.readString(format("[.#]{%d, %d}", N, N), "S_"+to_string(i));
    }
    inf.readEof();
    bool iskcpc = true, iskupc = true;
    for(int i = 0; i < N; i++) for(int j = 0; j < N; j++)
    {
        if(S[i][j] != kcpc[i/k][j/k]) iskcpc = false;
        if(S[i][j] != kupc[i/k][j/k]) iskupc = false;
    }
    inf.ensuref(iskcpc || iskupc, "invalid S");
    if(iskcpc) cout << "KCPC" << endl;
    else cout << "KUPC" << endl;
}