#include<bits/stdc++.h>
using namespace std;
int main()
{
    int condition;
    while(cin>>condition)
    {
        switch(condition)
        {
            case 200:cout<<"OK"<<endl;break;
            case 202:cout<<"Accepted"<<endl;break;
            case 400:cout<<"Bad Request"<<endl;break;
            case 403:cout<<"Forbidden"<<endl;break;
            case 404:cout<<"Not Found"<<endl;break;
            case 500:cout<<"Internal Server Error"<<endl;break;
            case 502:cout<<"Bad Gateway"<<endl;break;
            default:break;
        }
    }    
    return 0;
}