It depends on the context.
I use the left-handed system in povray. I type pov-scripts with both hands
(neither one types more letters than the other in the average). IRL I'm
right-handed.
--
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/