L = int(input())
M = int(input())
N = int(input())

K = L * 1 + M * 25 + N * 100 #Kは合計金額

Yen1 = K % 25
Yen25 = K // 25 % 4
Yen100 = K // 100 % 10

print(Yen1 + Yen25 + Yen100)