let () =
  let l, m, n = Scanf.scanf "%d %d %d " (fun l m n -> l, m, n) in
  let a, x = n / 25, n mod 25 in
  let m = m + a in
  let a, y = m / 4, m mod 4 in
  let z = (l + a) mod 10 in
  Printf.printf "%d\n" (x + y + z)