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change = float(input())
change_in_coins = round(change * 100)
coin_count = 0
while change_in_coins > 0:
    coin_count += 1
    if change_in_coins >= 200:
        change_in_coins -= 200
    elif change_in_coins >= 100:
        change_in_coins -= 100
    elif change_in_coins >= 50:
        change_in_coins -= 50
    elif change_in_coins >= 20:
        change_in_coins -= 20
    elif change_in_coins >= 10:
        change_in_coins -= 10
    elif change_in_coins >= 5:
        change_in_coins -= 5
    elif change_in_coins >= 2:
        change_in_coins -= 2
    elif change_in_coins >= 1:
        change_in_coins -= 1
print(coin_count)