#include <iostream>
using namespace std;
int main()
{
	int a, b, i, o, s1=0, s2=0;
	cin >> a;
	cin >> b;
	for (i = 1; i < a; i++)if(a % i == 0)s1 = s1 + i;
	for (o = 1; o < b; o++)if(b % o == 0)s2 = s2 + o;
	if (s1 == b && s2 == a)cout << "PRIETENE";
	else cout << "NU SUNT PRIETENE";
	return 0;
}