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

int main()
{
    int n;
    cin >> n;
    switch (n) {
        case 2:
        case 3:
        case 5:
        case 7:
        case 11:
        case 13:
        case 17:
        case 19:
        case 23:
        case 29:
        case 31:
        case 37:
        case 41:
        case 43:
        case 47:
        case 53:
        case 59:
        case 61:
            cout << "素数!" << endl;
            break;
        case 4:
        case 9:
        case 16:
        case 25:
        case 36:
        case 49:
            cout << "平方数!" << endl;
            break;
        case 8:
        case 27:
            cout << "立方数!" << endl;
            break;
        case 6:
        case 28:
            cout << "完全数!" << endl;
            break;
        default:
            cout << n << endl;
    }
}