is4bp2 hs4bp gs4b fs4bp2 es4bp

t13bp s13b r13bp2 q13bp p13b

4a3b 3a3bp2 2a3bp 1a3b 0a3bp2

fk2bp2 ek2bp dk2b ck2bp2 bk2bp

qt1bp pt1b ot1bp2 nt1bp mt1b