def leftMostDigit(number):
    """
    they put in information here
    """
    #Put in information here
    number=abs(number)
    if number <1:
        return 0
    #??????????
    if number <10:
        return round(number,0)
    while (number>=10):
        number=number//10
    return number

def digitSum(number):
    """
    Sums the digits in an integer.  For example,
    input value of 243 would yield 9 as output,
    which is the sum of 2, 4, and 3.

    input: integer, positive or negative
    output: sum of the digits in the integer

    """
    
    number=abs(number)
    total = 0
    while number >0:
        digit=number%10
        total=total+digit
        number=number//10
    return total