#include <iostream>
using namespace std;

int sumadivisores(int n) {
  int suma=0;
  for (int i=1; i<n; ++i) {
    if (n%i==0) suma+=i;
  }
  return suma;
}

int main() {
  int n;
  while (cin >> n) {
    int suma= sumadivisores(n-2) + sumadivisores(n) + sumadivisores(n+2);
    if (suma==n) cout << n << ": popiropis" << endl;
    else if (suma%n==0) cout << n << ": " << suma/n << "-popiropis" << endl;
    else cout << n << ": res" << endl;
  }
}