#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef string str;
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    ll n;
    cin >> n;
    vector<str> s(n);
    for (ll i = 0; i < n; i++) cin >> s[i];
    ll k = n / 11;
    if (s[3 * k][10 * k] == '#') cout << "KUPC\n";
    else cout << "KCPC\n";
    return 0;
}