#include <bits/stdc++.h>
using namespace std;
bool ss(int n){
    bool r = true;
    for(int i = 2;i<=sqrt(n);i++){
        if(n%i==0){
            r = false;
            break;
        }
    }
    if (n <= 1 ){
        r = false;
    }
    return r;
}
int main (){
    int a,b;
    for(a=2;a<=100;a++){
        for(b=a+1;b<=100;b++){
            if(ss(a)&&ss(b)&&ss((a+b)/2)&& (a+b)%2==0){
                cout<<a<<" "<<(a+b)/2<<" "<<b<<endl;
            }
        }
              
    }
 
    return 0;
}
//1144

























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