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#include<bits/stdc++.h>
#define fasterthanlight ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define test int T; cin>>T; for(int U=1;U<=T;U++)
#define endl "\n"
#define int long long
#define vi vector<int>
#define pb push_back
#define mod 1000000007
#define MAX 1e9
#define MIN -1e9
#define hi 
using namespace std;

signed main()
{
	fasterthanlight;
	int n;
	cin >> n;
	int a[n] = {};
	int n1;
	cin >> n1;
	while (n1--)
	{
		int x;
		cin >> x;
		a[x - 1] = 1;

	}
	int n2;
	cin >> n2;
	while (n2--)
	{
		int x;
		cin >> x;
		a[x - 1] = 1;

	}
	for (int i = 0; i < n; i++)
	{
		if (a[i] == 0)
		{
			cout << "Oh, my keyboard!"; return 0;
		}
	}
	cout << "I become the guy.";

	//cout << "\n\n"<<"Time elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " seconds.\n";
	return 0;
}