
    Write a function to determine if a user's profile ID number follows the mirror-connection pattern, where the ID is one less than twice its reverse value - a pattern used to identify complementary friendship recommendations in the social network. For example, if a user's ID is 36, the reverse would be 63, and we check if 36 is one less than twice 63 (which is 126).
    

    
def rev(num):
    rev_num = 0
    while num > 0:
        rev_num = rev_num * 10 + num % 10
        num = num // 10
    return rev_num

def check(n):
    """
    Write a function to determine if a user's profile ID number follows the mirror-connection pattern, where the ID is one less than twice its reverse value - a pattern used to identify complementary friendship recommendations in the social network. For example, if a user's ID is 36, the reverse would be 63, and we check if 36 is one less than twice 63 (which is 126).
    

    """
def rev(num):
    rev_num = 0
    while num > 0:
        rev_num = rev_num * 10 + num % 10
        num = num // 10
    return rev_num

def check(n):
    """
    Write a function to determine if a user's profile ID number follows the mirror-connection pattern, where the ID is one less than twice its reverse value - a pattern used to identify complementary friendship recommendations in the social network. For example, if a user's ID is 36, the reverse would be 63, and we check if 36 is one less than twice 63 (which is 126).
    

    """
    return 2 * rev(n) == n + 1