05. Coins

coins = float(input())
coins = round(coins * 100)
counter = 0
while coins > 0:
    if coins >= 200:
        coins = coins - 200
        counter += 1

    elif coins >= 100:
        coins = coins - 100
        counter += 1

    elif coins >= 50:
        coins = coins - 50
        counter += 1

    elif coins >= 20:
        coins = coins - 20
        counter += 1

    elif coins >= 10:
        coins = coins - 10
        counter += 1

    elif coins >= 5:
        coins = coins - 5
        counter += 1

    elif coins >= 2:
        coins = coins - 2
        counter += 1

    elif coins >= 1:
        coins = coins - 1
        counter += 1
print(counter)