def getRidOf0Prefix(strNumber):
    for idx in range(len(strNumber)):
        if strNumber != "0":
            return strNumber[idx:]
    
    return "0"

def isBeautifulDays(strNumber, k):
    numerator = int(strNumber) - int(getRidOf0Prefix(strNumber[::-1]))
    calc = numerator / k
    
    return True if calc == int(calc) else False 

def beautifulDays(i, j, k):
    res = 0
    for idx in range(i, j+1):
        if isBeautifulDays(str(idx), k):
            res += 1
    
    return res