题解 | #HTTP状态码#

while True:
    try:
        n = int(input())
        if n == 200:
            print('OK')
        elif n == 202:
            print('Accepted')
        elif n == 400:
            print('Bad Request')
        elif n == 403:
            print('Forbidden')
        elif n == 404:
            print('Not Found')
        elif n == 500:
            print('Internal Server Error')
        elif n == 502:
            print('Bad Gateway')
    except:
        break