a = int(input())
b = int(input())
c = int(input())
if (a / 25) > 0.0:
    b += int(a/25)
    a -= 25 * int(a/25)
if (b / 4) > 0.0:
    c += int(b/4)
    b -= 4 * int(b/4)
if (c / 10) > 0.0:
    c -= 10 * int(c/10)
print(a+b+c)