L = int(input()) #100円硬貨枚数
M = int(input()) #25円硬貨枚数
N = int(input()) #1円硬貨枚数

sum = 100*L + 25*M + 1*N

sum = sum % 1000
l = sum // 100

sum = sum % 100
m = sum // 25

n = sum % 25

ans = l + m + n
print(ans)