#include<bits/stdc++.h>
using namespace std;
int su(int q){
    int i=2,o=1;
    for(i=2;i<q;i++){
        if(q%i==0){
            o=0;
            break;
        }
    }
    return o;
}
int main()
{
    int i,n,t;
    for(i=3;i<100;i++){
        for(t=i+1;t<100;t++){
            if(su(i)==1&&su(t)==1&&su((i+t)/2)==1){
                cout<<i<<" "<<(i+t)/2<<" "<<t<<endl;
            }
        }
    } 
return 0;
 
}
/**************************************************************
	Problem: 1144
	User: linyuhang
	Language: C++
	Result: Accepted
	Time:5 ms
	Memory:2072 kb
****************************************************************/