Coins

import math

coins = float(input())
lv = math.floor(coins)
moneti = round((coins - lv) * 100)
br = 0
while (lv > 0):
    if lv >= 2:
        br += 1
        lv -= 2
    elif lv >= 1:
        br += 1
        lv -= 1
while moneti > 0:
    if moneti >= 50:
        br += 1
        moneti -= 50
    elif moneti >= 20:
        br += 1
        moneti -= 20
    elif moneti >= 10:
        br += 1
        moneti -= 10
    elif moneti >= 5:
        br += 1
        moneti -= 5
    elif moneti >= 2:
        br += 1
        moneti -= 2
    elif moneti >= 1:
        br += 1
        moneti -= 1
        break
    else:
        break;
print(br)