#load "str.cma" ;;
#use "lib/file_utils.ml" ;;

let contents = read_file "inputs/1.txt" in
let maxcal = Str.split (Str.regexp "\n\n") contents
  |> List.map (String.split_on_char '\n')
  |> List.map (List.map (int_of_string))
  |> List.map (List.fold_left (+) 0)
  |> List.fold_left (max) 0
  in

Printf.printf "%d" maxcal