#include<stdio.h>
int main()
{
    int n;
    while (scanf("%d",&n)!=EOF)
    {
       switch(n)
       {
            case 200:
               printf("OK\n");
               break;
           case 202:
               printf("Accepted\n");
               break;
           case 400:
               printf("Bad Request\n");
               break;
           case 403:
               printf("Forbidden\n");
               break;
           case 404:
               printf("Not Found\n");
               break;
           case 500:
               printf("Internal Server Error\n");
               break;
           case 502:
               printf("Bad Gateway\n");
               break;
       }
    }

    return 0;
}