#include <stdio.h>

int main()
{
    for(int p = 1; p<100; p++){
        for(int q = p; q< 100; q++){
            for(int r = q; r< 100; r++){
                for(int s = r; s< 100; s++){
                    if(p * q * r + p * q * s + p * r * s + q * r * s == p * q * r * s){
                        printf("%d %d %d %d\n", p, q, r, s);
                    }
                }
            }
        }
    }
}
/**************************************************************
	Problem: 1255
	User: admin
	Language: C
	Result: Runtime Error
****************************************************************/