#include <iostream>
using namespace std;
int main()
{
int l1, l2, l3; //"laturile"
cin>>l1>>l2>>l3;
while(l3!=0)
{
if ((l1==l3 || l1==l2 || l2==l3) && (l1<l2+l3 && l2<l1+l3 && l3<l1+l2))
cout<<"( "<<l1<<", "<<l2<<", "<<l3<<"), ";
l1=l2;
l2=l3;
cin>>l3;
}
return 0;
}
//Programul functioneaza, este testat in prealabil in CodeBlocks