题解 | #整数与IP地址间的转换#

while 1:
    try:
        ip_address = list(map(int, input().split('.')))
        ip_number = int(input(), 10)

        # 先做ip地址转十进制
        ip_bin = ''
        for i in range(len(ip_address)):
            bin_str = '0' * (8 - len(bin(ip_address[i])[2:])) + bin(ip_address[i])[2:]
            ip_bin = ip_bin + bin_str
        ip_bin = '0b' + ip_bin
        ip_10 = int(ip_bin, 2)
        print(ip_10, end='\n')

        # 再做十进制转ip地址
        ip_list = []
        ip_10 = '0' * (32 - len(bin(ip_number)[2:])) + bin(ip_number)[2:]
       
        for j in range(4):
            bin_str = '0b' + ip_10[j*8:(j+1)*8]
            b = str(int(bin_str, 2))
            ip_list.append(b)
        print('.'.join(ip_list))

    except:
        break