
    Write a function to determine if an emergency room's predicted hourly patient volume code follows a special staffing pattern rule, where the volume code is one less than twice its reversed digits. This validation helps identify specific staffing requirements based on historical ER visit patterns.
    

    
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 an emergency room's predicted hourly patient volume code follows a special staffing pattern rule, where the volume code is one less than twice its reversed digits. This validation helps identify specific staffing requirements based on historical ER visit patterns.
    

    """
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 an emergency room's predicted hourly patient volume code follows a special staffing pattern rule, where the volume code is one less than twice its reversed digits. This validation helps identify specific staffing requirements based on historical ER visit patterns.
    

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