*Coins* 5/10

money_change = int(float(input()) * 100)
num_of_coins = 0

while money_change > 0:
    num_of_coins += 1

    if money_change >= 200:
        money_change -= 200

    elif money_change >= 100:
        money_change -= 100

    elif money_change >= 50:
        money_change -= 50

    elif money_change >= 20:
        money_change -= 20

    elif money_change >= 10:
        money_change -= 10

    elif money_change >= 5:
        money_change -= 5

    elif money_change >= 2:
        money_change -= 2

    elif money_change >= 1:
        money_change -= 1

print(num_of_coins)