-ic -th b-u bbb bbc bbd bbh bbi bbl bbn bbr bbt bbu bcb bcc bcd bch bci bcl bcn bcr bct bcu bdb bdc bdd bdh bdi bdl bdr bdt bdu bhb bhc bhd bhh bhi bhl bhr bht bhu bi- bib bic bid bih bii bil bin bir bit biu blb blc bld blh bli bll bln blr blt blu bnb bnc bnd bni bnl bnn bnr bnt bnu brb brd brh bri brl brn brr brt bru btb btc btd bth bti btl btn btr btt btu bub buc bud buh bui bul bun bur but buu c-- cbb cbc cbd cbh cbi cbl cbn cbr cbt cbu ccb ccc ccd cch cci ccl ccn ccr cct ccu cdb cdc cdd cdh cdi cdl cdn cdr cdt cdu ch- chb chc chd chh chi chl chn chr cht chu ci- cib cic cid cih cii cil cin cir cit ciu cl- clb clc cld clh cli cll cln clr clt clu cn- cnb cnc cnd cnh cni cnl cnn cnr cnt cnu crb crc crd crh cri crl crn crr crt cru ctb ctc ctd cth cti ctl ctn ctr ctt ctu cub cuc cud cuh cui cul cun cur cut cuu dbb dbc dbd dbh dbi dbl dbn dbr dbt dbu dcb dcc dcd dci dcl dcn dcr dct dcu ddb ddc ddd ddh ddi ddl ddn ddr ddt ddu dh- dhb dhc dhd dhh dhi dhl dhr dht dhu di- dib dic did dih dii dil din dir dit diu dl- dlb dlc dld dlh dli dll dlr dlt dlu dnb dnc dnd dnh dni dnl dnn dnr dnt drb drc drd dri drl drn drr drt dru dtb dtc dtd dth dti dtl dtn dtr dtt dtu dub duc dud duh dui dul dun dur dut h-i hbb hbc hbd hbh hbi hbl hbn hbr hbt hbu hcb hcc hcd hch hci hcl hcn hcr hct hdb hdc hdd hdh hdi hdl hdn hdr hdt hdu hhb hhc hhd hhh hhi hhl hhn hhr hht hhu hib hic hid hih hii hil hin hir hit hiu hlb hlc hld hlh hli hll hln hlr hlt hlu hnb hnc hnd hnh hnl hnn hnt hnu hr- hrb hrc hrd hrh hri hrl hrn hrr hrt hru htb htc htd hth hti htl htn htr htt hub huc hud huh hui hul hun hur hut huu i-d ibb ibc ibd ibh ibi ibl ibn ibr ibt ibu icb icc icd ich ici icl icn icr ict icu idb idc idd idh idi idl idn idr idt idu ihb ihc ihd ihh ihi ihl ihn ihr iht ihu iib iic iid iih iii iil iin iir iit iiu il- ilb ilc ild ilh ili ill iln ilr ilt ilu in- inb inc ind inh ini inl inn inr int inu ir- irb irc ird iri irl irn irr irt iru itb itc itd ith iti itl itn itt itu iu- iub iuc iud iui iur iut lbb lbc lbd lbh lbi lbl lbr lbt lbu lcb lcc lcd lch lci lcl lcn lcr lct lcu ldb ldc ldd ldh ldi ldl ldn ldr ldt ldu lhb lhc lhd lhh lhi lhr lht lhu lib lic lid lih lii lil lin lir lit liu llb llc lld lli lll lln llr llt llu lnb lnc lnd lnh lni lnl lnn lnr lnt lnu lrb lrc lrd lrh lri lrn lrr lrt lru ltb ltc ltd lth lti ltl ltr ltt ltu lub luc lud luh lui lul lun lur lut luu n-i nbb nbc nbd nbi nbl nbn nbr nbt nbu ncb ncc ncd nch nci ncl ncn ncr nct ncu ndb ndc ndd ndh ndi ndl ndn ndr ndt ndu nhb nhc nhd nhh nhi nhl nhn nhr nht nhu nib nic nid nih nii nil nin nir nit niu nlb nlc nld nlh nli nll nln nlr nlt nlu nnb nnc nnh nni nnl nnn nnt nnu nrb nrc nrd nri nrl nrn nrr nrt nru ntb ntc ntd nth nti ntn ntr ntt ntu nub nuc nud nuh nui nul nun nur nut nuu rbb rbc rbd rbh rbi rbl rbn rbr rbt rbu rcb rcc rcd rch rci rcl rcn rcr rct rcu rdb rdc rdd rdh rdi rdl rdn rdr rdt rdu rh- rhb rhc rhd rhh rhi rhl rhn rhr rht rhu rib ric rid rih rii ril rin rir rit rlc rld rlh rli rll rln rlr rlt rlu rnb rnc rnd rnh rni rnn rnr rnt rnu rrb rrc rrd rrh rri rrl rrn rrr rrt rru rtb rtc rtd rti rtl rtn rtr rtt rtu rub ruc rud ruh rui run rur rut ruu tbb tbc tbd tbh tbi tbl tbn tbr tbt tbu tcb tcc tcd tch tci tcl tcn tcr tct tcu tdb tdc tdd tdh tdi tdl tdn tdr tdt tdu th- thb thc thd thh thi thl thn thr tht thu tib tic tid tih tii til tin tir tit tiu tlc tld tlh tli tll tln tlr tlt tlu tnb tnc tnd tnh tni tnl tnn tnr tnt trb trc trd trh tri trl trn trr trt tru ttb ttc ttd tth tti ttl ttn ttr ttt ttu tub tuc tud tuh tui tul tun tur tut tuu ubb ubc ubh ubi ubl ubn ubr ubt ubu ucb ucc ucd uch uci ucl ucn ucr uct ucu udb udc udd udi udl udn udr udt udu uhb uhc uhd uhh uhi uhl uhr uht uhu uib uic uid uii uil uin uir uit uiu ulb ulc uld uli ull uln ulr ult ulu un- unb unc und unh uni unl unn unr unt unu ur- urb urc urd uri url urn urr urt uru utb utc utd uth uti utl utn utr utt utu uuc uun uur uut uuu

bbbb bbch bbci bbdd bbin bblb bbrc bcbc bccc bcci bccl bchd bcit bcnu bcru bctc bcuc bd-r bdbc bddc bddh bdii bdin bhcc bhdl