Rzutka gra 2

def rzutka():
    range = input().split(" ")
    x = int(range[0])
    y = int(range[1])
    throwsNumber = int(input())
    throws = input().split(" ")
    points = 0
    i = 0
    while i < throwsNumber:
        throw = int(throws[i])
        if throw >= x and throw <=y:
            points = 0
        elif throw < x:
            points += x - throw
        elif throw > y:
            points += throw - y
        i += 1
    print(points)

rzutka()