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

int main(){
  int n;
  cin>>n;
  vector<string> s(n);
  for (int i=0;i<n;i++) cin>>s[i];
  int k=n/11;
  if (s[0][n-k-1]=='#') cout<<"KCPC\n";
  else cout<<"KUPC\n";
}