#No.32 貯金箱の憂鬱
L = int(input())
M = int(input())
N = int(input())

sum = L*100 + M*25 + N*1
sum = sum - (sum//1000)*1000 #硬貨になるお金
a = sum//100 #100円玉の枚数
sum = sum - a*100
b = sum//25 #25円玉の枚数
sum = sum - b*25
c = sum//1 #1円玉の枚数
print(a+b+c)