RosettaCodeData/Task/Man-or-boy-test/Julia/man-or-boy-test.julia

function a(k, x1, x2, x3, x4, x5)
  b = ()-> a(k-=1, b, x1, x2, x3, x4);
  k <= 0 ? (x4() + x5()) : b();
end

println(a(10, ()->1, ()->-1,  ()->-1, ()->1, ()->0));