#!/bin/python3

import sys


def permute(LIST):
    length=len(LIST)
    if length <= 1:
        yield LIST
    else:
        for n in range(0,length):
             for end in permute( LIST[:n] + LIST[n+1:] ):
                 yield [ LIST[n] ] + end

def howManyGames(p, d, m, s):
    sum1 = 0
    count = 0
    count1 = 0
    row = [d,m]
    for x in permute(row):
        count1+=1 
    for i in x:
        sum1 += 20 - i
        if sum1 < s:
            count+=3
        
    return count

if __name__ == "__main__":
    p, d, m, s = input().strip().split(' ')
    p, d, m, s = [int(p), int(d), int(m), int(s)]
    answer = howManyGames(p, d, m, s)
    print(answer)