#coding: UTF-8

import sys
from math import pi
from collections import deque
from functools import reduce

### defs ###

### main ###
L,M,N = map(int,sys.stdin.readlines())
money = L*100 + M*25 + N
money -= money//1000*1000
ans = money//100
money -= money//100 * 100
ans += money//25
money -= money//25*25
ans += money
print(ans)