bbb bbc bbe bbh bbk bbo bbq bcb bcc bce bch bck bco bcq be- beb bec bee beh bek beo beq bhb bhc bhe bhh bhk bho bhq bkb bkc bke bkk bko bkq bob boc boe boh bok boo boq bqc bqe c-- cbb cbc cbe cbh cbk cbo cbq ccb ccc cce cch cck cco ce- ceb cec cee ceh cek ceo ceq ch- chb chc che chh chk cho chq ckb ckc ckh cko co- cob coc coe coh cok coo coq cqb cqc cqo ebb ebc ebe ebh ebk ebo ebq ec- ecb ecc ece ech eck eco ecq eeb eec eee eek eeo ehb ehc ehe ehh eho ekb ekc eke ekh eko eo- eob eoc eoe eoh eok eoo eoq eqe eqq hbb hbc hbe hbh hbk hbo hcb hcc hce hch hck hco he- heb hec hee heh hek heo hhb hhc hhe hhh hhk hho hkb hkh hkk hko hob hoc hoe hoh hok hoo kbb kbc kbe kbh kbk kbo kcb kcc kce kch kck ke- keb kec kee keh kek keo khe khh khk kho kkb kkc kke kkh kkk kob koc koe koh kok koo ob- obb obc obe obh obk obo oc- ocb occ och ock oco oeb oec oee oeh oeo ohc ohe ohh oho ohq okb okc oke okk oko oo- oob ooc ooh ook ooo oqb oqo qbc qbe qbq qcc qco qec qee qeh qeo qhc qoo qqk qqq