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

to = L * 100 + M * 25 + N

if to > 0 :
    to = to - 1000
else :
    to = 0
    
L = to // 100
to = to - (L * 100)
M = to // 25
to = to - (M * 25)
N = to

print(N + M +L)