#include <iostream>
using namespace std;
int a,b,c;
int main()
{
cout<<"Dati primul numar=";cin>>a;
cout<<"Dati al doilea numar=";cin>>b;
cout<<"Dati al treilea numar=";cin>>c;
if(b==a+1&&c==b+1)
cout<<"Sunt consecutive";
else cout<<"Nu sunt consecutive";
return 0;
}