-ic bbb bbc bbe bbh bbi bbo bbs bcb bcc bce bch bci bco bcs be- beb bec bee beh bei beo bes bhb bhc bhe bhh bhi bho bhs bi- bib bic bie bih bii bio bis bob boc boe boh boi boo bos bsb bsc bse bsh bsi bso bss c-- cbb cbc cbe cbh cbi cbo cbs ccb ccc cce cch cci cco ccs ce- ceb cec cee ceh cei ceo ces ch- chb chc che chh chi cho chs ci- cib cic cie cih cii cio cis co- cob coc coe coh coi coo cos csb csc cse csh csi cso css ebb ebc ebe ebh ebi ebo ebs ec- ecb ecc ece ech eci eco ecs eeb eec eee eeo ees ehb ehc ehe ehh ehi eho ehs eib eic eie eii eio eis eo- eob eoc eoe eoh eoi eoo eos es- esb esc ese esh esi eso ess h-i hbb hbc hbe hbh hbi hbo hbs hcb hcc hce hch hci hco hcs he- heb hec hee heh hei heo hes hhb hhc hhe hhh hhi hho hhs hib hic hie hih hii hio his hob hoc hoe hoh hoi hoo hos hsb hsc hse hsh hsi hss ibb ibc ibe ibh ibi ibo ibs icb icc ice ich ici ico ics ie- iec iee iei ies ihb ihc ihe ihh ihi iho ihs iib iic iie iih iii iio iis io- iob ioc ioe ioh ioi ioo ios is- isb isc ise ish isi iso iss o-i ob- obb obc obe obh obi obo obs oc- ocb occ och oci oco ocs oeb oec oee oeh oei oeo oes ohc ohe ohh ohi oho ohs oib oic oie oii oio ois oo- oob ooc ooh ooi ooo oos os- osb osc ose osh osi oso oss sbb sbc sbe sbh sbi sbo sbs scb scc sce sch sci sco scs se- seb sec see seh sei seo ses sh- shb shc she shh shi sho shs sib sic sie sih sii sio sis sob soc soe soh soi soo sos ss- ssb ssc sse ssh ssi sso sss