#include <cstdio>
#include <algorithm>
#include <map>
#include <string>

using namespace std;

int main(){
	map<int,string> myMap;
	myMap[200] = "OK";
	myMap[202] = "Accepted";
	myMap[400] = "Bad Request";
	myMap[403] = "Forbidden";
	myMap[404] = "Not Found";
	myMap[500] = "Internal Server Error";
	myMap[502] = "Bad Gateway";
	
	int n;
	while(scanf("%d",&n) != EOF){
		printf("%s\n",myMap[n].c_str());
	}
	

	return 0;
}