#include <stdio.h>
int main()
{
    int n = 0;
    while (scanf("%d", &n) != EOF)
    {
        int stl[7] = { 200,202,400,403,404,500,502 };//升序数组
        char ch[7][50] = { {"OK"},{"Accepted"},{"Bad Request"},{"Forbidden"},{"Not Found"},{"Internal Server Error"},{"Bad Gateway"} };

        int i, j = 0;
        for (i = 0; i < 7; i++,j++)
        {
                if (n == stl[i])
                {
                    printf("%s\n", ch[j]);
                }
        }


    }
    return 0;
}