bx2b2 cx2b2u dx2b ex2b2 fx2b2u

0n3b2u 1n3b 2n3b2 3n3b2u 4n3b

pe4b qe4b2 re4b2u se4b te4b2

e54b2 f54b2u g54b h54b2 i54b2u

3v5b2u 4v5b 5v5b2 6v5b2u 7v5b