lupbgn mupb nupbg oupbgn pupb

alqb blqbg clqbgn dlqb elqbg

zbrbg 0brbgn 1brb 2brbg 3brbgn

o2rbgn p2rb q2rbg r2rbgn s2rb

dtsb etsbg ftsbgn gtsb htsbg