#include <iostream>
 #include <iomanip>
 #include <cmath>
 #include <algorithm>

 using namespace std;
void Rofyda_Elghadban(){
  #ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
  #endif
}

int main()
 {   Rofyda_Elghadban();
 bool f1,s1,f2,s2;
 cin>>f1>>s1>>f2>>s2;
 if(s1=s2){
     cout<<"ARE Brothers"<<"\n";
 }
 else{
     cout<<"NOT"<<"\n";
 }
   return 0;
 }