9qbr11 arbr brbr1 crbr11 drbr
yhcr zhcr1 0hcr11 1hcr 2hcr1
n8cr1 o8cr11 p8cr q8cr1 r8cr11
czdr11 dzdr ezdr1 fzdr11 gzdr
1per 2per1 3per11 4per 5per1