# coding: UTF-8
import sys
import os
#FILES = os.listdir('./test')
#for FILE in FILES:
#    fd = os.open('./test/' + FILE, os.O_RDONLY)
#    os.dup2(fd, sys.stdin.fileno())
#fd = os.open('file.txt', os.O_WRONLY|os.O_CREAT)
#os.dup2(fd, sys.stdout.fileno())
fd = os.open('test.txt', os.O_RDONLY)
os.dup2(fd, sys.stdin.fileno())
# “ü—Í

import heapq
from collections import deque

d = deque()
L = int(input())
M = int(input())
H = int(input())


h = H // 25
M += h
m = M // 4
L += m
l = L // 10

count = H - h * 25 + M - m * 4 + L - l * 10

print(count)