#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;
}
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