Hi Lafras,

It sounds like you don't want the whole sum of the carry's just the sum of the 
last two in each group. When I use your S as you have defined it I get

    S
36 35 26 16 22 32

then I take the vector overlapping 2 at a time to make a table
   2 ]\  S
36 35
35 26
26 16
16 22
22 32

then I apply carry on each row
   2 ([: carry/"1 ]\ ) S
38 29 18 23 34

Is this what you  had in mind?

Cheers, bob

ps. (you are the first Lafras I have met. Cool name :-) )

   
> On May 22, 2017, at 2:50 AM, Lafras Uys <[email protected]> wrote:
> 
> L:0 < \ S

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