#include <iostream>
using namespace std;
int main(){
int a,b,c;
cout<<"Dati laturile triunghiului: ";
cin>>a>>b>>c;
if(((a==b && a!=c && b!=c)||(a!=b && a==c && b!=c)||(a!=b && a!=c && b==c))&&(a>0 && b>0 && c>0)){
cout<<"Formeaza triunghi isoscel!";
}
if(((a==b && b==c && a==c)||(a!=b && a!=c && b!=c))&&(a>0 && b>0 && c>0)){
cout<<"Nu formeaza triunghi isoscel!";
}
else if(a<=0 || b<=0 || c<=0){
cout<<"Nu formeaza triunghi!";
}
return 0;
}
