y100=gets.to_i
y25=gets.to_i
y1=gets.to_i

a = y1 / 25
y25 += a
y1 -= a * 25

a = y25 / 4
y100 += a
y25 -= a * 4

a = y100 / 10
y100 -= a * 10

puts y100 + y25 + y1