-ic b-u bbb bbc bbd bbh bbi bbo bbr bbu bcb bcc bcd bch bci bco bcr bcu bdb bdc bdd bdh bdi bdo bdr bdu bhb bhc bhd bhh bhi bho bhr bhu bi- bib bic bid bih bii bio bir biu bob boc bod boh boi boo bor bou brb brd brh bri bro brr bru bub buc bud buh bui buo bur buu c-- cbb cbc cbd cbh cbi cbo cbr cbu ccb ccc ccd cch cci cco ccr ccu cdb cdc cdd cdh cdi cdo cdr cdu ch- chb chc chd chh chi cho chr chu ci- cib cic cid cih cii cio cir ciu co- cob coc cod coh coi coo cor cou crb crc crd crh cri cro crr cru cub cuc cud cuh cui cuo cur cuu dbb dbc dbd dbh dbi dbo dbr dbu dcb dcc dcd dci dco dcr dcu ddb ddc ddd ddh ddi ddo ddr ddu dh- dhb dhc dhd dhh dhi dho dhr dhu di- dib dic did dih dii dio dir diu dob doc dod doh doi doo dor dou drb drc drd dri dro drr dru dub duc dud duh dui duo dur h-i hbb hbc hbd hbh hbi hbo hbr hbu hcb hcc hcd hch hci hco hcr hdb hdc hdd hdh hdi hdo hdr hdu hhb hhc hhd hhh hhi hho hhr hhu hib hic hid hih hii hio hir hiu hob hoc hod hoh hoi hoo hor hou hr- hrb hrc hrd hrh hri hro hrr hru hub huc hud huh hui huo hur huu i-d ibb ibc ibd ibh ibi ibo ibr ibu icb icc icd ich ici ico icr icu idb idc idd idh idi ido idr idu ihb ihc ihd ihh ihi iho ihr ihu iib iic iid iih iii iio iir iiu io- iob ioc iod ioh ioi ioo ior iou ir- irb irc ird iri iro irr iru iu- iub iuc iud iui iur o-i ob- obb obc obd obh obi obo obr obu oc- ocb occ ocd och oci oco ocr ocu odb odc odd odh odi odo odr odu ohc ohd ohh ohi oho ohr ohu oib oic oid oii oio oir oiu oo- oob ooc ood ooh ooi ooo oor or- orb orc ord orh ori oro orr oru ou- ouc oud ouh oui ouo our rbb rbc rbd rbh rbi rbo rbr rbu rcb rcc rcd rch rci rco rcr rcu rdb rdc rdd rdh rdi rdo rdr rdu rh- rhb rhc rhd rhh rhi rho rhr rhu rib ric rid rih rii rio rir rob roc rod roh roi roo ror rou rrb rrc rrd rrh rri rrr rru rub ruc rud ruh rui ruo rur ruu ubb ubc ubh ubi ubo ubr ubu ucb ucc ucd uch uci uco ucr ucu udb udc udd udi udo udr udu uhb uhc uhd uhh uhi uho uhr uhu uib uic uid uii uio uir uiu uob uoc uod uoo uor ur- urb urc urd uri uro urr uru uuc uur uuu