let abcde_curried = 
  ((a: int), (b: int), (c: int), (d: int), (e: int)): int => 
    c + e + 3;

let abcde = 
  ((x: (int, int, int, int, int))): int => 
    abcde_curried(x[0], x[1], x[2], x[3], x[4]);