#include <stdio.h>

int main() {
    int H=0;
   
    
    while(scanf("%d",&H)!=EOF)
    {
        switch(H)
    {
        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;
}