ghpn fhpn2d ehpn2 dhpn chpn2d

rqon2d qqon2 pqon oqon2d nqon2

2znn2 1znn 0znn2d zznn2 yznn

d9mn c9mn2d b9mn2 a9mn 98mn2d

oimn2d nimn2 mimn limn2d kimn2