#include<bits/stdc++.h>
using namespace std;
int ss(int n){
	if(n<2){
		return 0;
	}else{
		for(int i=2;i<=sqrt(n);i++){
			if(n%i==0){
				return 0;	
			}
		}
		return 1;	
	}
	
}
int main()
{
	int i,j; 
	for(i=3;i<=100;i++){
		if(ss(i)){
			for(j=i+2;j<=100;j++){
				if(ss(j)&&ss((i+j)/2)){
					cout<<i<<" "<<(i+j)/2<<" "<<j<<endl; 
				}
			}
		}
	}
	return 0;
}

/**************************************************************
	Problem: 1144
	User: zzz
	Language: C++
	Result: Accepted
	Time:5 ms
	Memory:2072 kb
****************************************************************/