m100x=int(input())
m25x=int(input())
m1x=int(input())

a_m25x=int(m1x/25)
m1x-=a_m25x*25

m25x+=a_m25x

a_m100x=int(m25x/4)
m25x-=a_m100x*4

m100x+=a_m100x

a_m1000x=int(m100x/10)
m100x-=a_m1000x*10    
print(m1x+m25x+m100x)