inputs = STDIN.readlines.map(&:chomp)
l = inputs[0].to_i
m = inputs[1].to_i
n = inputs[2].to_i

total = l * 100 + m * 25 + n
new_l = (total % 1000) / 100
new_m = (total % 100) / 25
new_n = total % 25

puts new_l + new_m + new_n