#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;

ll arr[200000];
int main()
{
  ll step,mod,i,j,k,a,b,c,d,e;
  while(cin>>step>>mod)
  {
    bool vis[mod+5]={false};
    ll x=0;
    arr[0]=(x+step)%mod;
    a=arr[0];
    i=1;
    while(true)
    {
        arr[i]=(arr[i-1]+step)%mod;
        vis[arr[i]]=true;
        if(arr[i]==a)
            break;
        i++;
    }
    ll fl=0;
    for(i=0;i<mod;i++)
    {
        if(vis[i]==false)
        {
            fl=1;
            break;
        }
    }
    if(fl==0)
    {
        printf("%10lld%10lld    Good Choice\n",step,mod);
        cout<<endl;
    }
    else
    {
        printf("%10lld%10lld    Bad Choice\n",step,mod);
        cout<<endl;
    }
  }
}