text: #include<iostream>
  #include<cstring>
  using namespace std;
  
  int main()
  {
  	// I wanna be the Guy: 469A
  	int n;
  	cin>>n;
  	
  	int arr[n+1] = {0};	
  	int p,q,lvl;
  	cin>>p;	
  	for(int i = 0; i<p; i++)
  	{
  		cin>>lvl;
  		arr[lvl] = 1;
  	}
  	
  	cin>>q;	
  	for(int i = 0; i<q; i++)
  	{
  		cin>>lvl;
  		arr[lvl] = 1;
  	}
  	
  	for(int i = 1; i<=n; i++)
  	{
  		if(arr[i]==0)
  		{
  			cout<<"Oh, my keyboard!";
  			return 0;
  		}
  	}
  	cout<<"I become the guy.";
  	return 0;
  }
  