#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;
}



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