import math

coins = float(input())
leva = math.floor(coins)
moneti = math.floor((coins - leva) * 100)
counter = 0

while leva > 0:

    if leva >= 2:
        counter += 1
        leva -= 2
    elif leva >= 1:
        counter += 1
        leva -= 1
    else:
        break

while moneti > 0:

    if moneti >= 50:
        counter += 1
        moneti -= 50
    elif moneti >= 20:
        counter += 1
        moneti -= 20
    elif moneti >= 10:
        counter += 1
        moneti -= 10
    elif moneti >= 5:
        counter += 1
        moneti -= 5
    elif moneti >= 2:
        counter += 1
        moneti -= 2
    elif moneti >= 1:
        counter += 1
        moneti -= 1
    else:
        break


print(counter)