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

//const long long INF = 1LL<<60;

int main() {
    int t;
    cin >> t;
    for (int i=0; i < t; i++){
        int n;
        cin >> n;
        if (n == (sqrt(n) * sqrt(n))) cout << "P" << endl;
        else cout << "K" << endl;
    }
    return 0;
}