#151012=(5 xx 3) uu (5 xx 2) uu "rev"((5+2) xx 3)# #183662 = (9 xx 2) uu (9 xx 4) uu "rev"((9+4) xx 2)# #cdots# #143542=(7 xx 2) uu (7 xx 5) uu "rev"((7+5) xx 2)#
Here #"rev"(ab)=ba#
#color(white)(..........................................................)# typo corrected EZ