coins = {
    100: None,
    25: None,
    1: None,
}

for coin in coins:
    coins[coin] = int(input())

money = 0
for i, j in coins.items():
    money += i*j

money = money % 1000
for coin in coins:
    coins[coin], money = divmod(money, coin)

print(sum(coins.values()))