题解 | #整数与IP地址间的转换#

# 整数与IP地址的转换，用到bin(number, /), int(x, base=10)

normal_addr = input()
decimal_addr = input()

def to_decimal_addr(data):
    numbers = list(map(int, data.split('.')))
    
    for num in numbers:
        bin_str = bin(num)[2:]
        str_len = len(bin_str)
        tran_str = bin_str if str_len == 8 else '0'*(8 - str_len) + bin_str
        numbers[numbers.index(num)] = tran_str
    # print(numbers)
    
    result = int("".join(numbers), 2)
    return result


def to_normal_addr(data):
    int_num = int(data)
    
    bin_str = bin(int_num)[2:]
    str_len = len(bin_str)
    trans_str = bin_str if str_len % 8 == 0 else '0'*(8 - str_len % 8) + bin_str
    # print(trans_str)
    
    tmp = []
    for i in range(len(trans_str) // 8):
        num = str(int(trans_str[8*i:8*(i+1)], 2))
        tmp.append(num)
    
    result = ".".join(tmp)
    return result


if __name__ == '__main__':
    result_1 = to_decimal_addr(normal_addr)
    print(result_1)
    result_2 = to_normal_addr(decimal_addr)
    print(result_2)