-ic -th b-u bbb bbc bbd bbh bbi bbr bbt bbu bcb bcc bcd bch bci bcr bct bcu bdb bdc bdd bdh bdi bdr bdt bdu bhb bhc bhd bhh bhi bhr bht bhu bi- bib bic bid bih bii bir bit biu brb brd brh bri brr brt bru btb btc btd bth bti btr btt btu bub buc bud buh bui bur but buu c-- cbb cbc cbd cbh cbi cbr cbt cbu ccb ccc ccd cch cci ccr cct ccu cdb cdc cdd cdh cdi cdr cdt cdu ch- chb chc chd chh chi chr cht chu ci- cib cic cid cih cii cir cit ciu crb crc crd crh cri crr crt cru ctb ctc ctd cth cti ctr ctt ctu cub cuc cud cuh cui cur cut cuu dbb dbc dbd dbh dbi dbr dbt dbu dcb dcc dcd dci dcr dct dcu ddb ddc ddd ddh ddi ddr ddt ddu dh- dhb dhc dhd dhh dhi dhr dht dhu di- dib dic did dih dii dir dit diu drb drc drd dri drr drt dru dtb dtc dtd dth dti dtr dtt dtu dub duc dud duh dui dur dut h-i hbb hbc hbd hbh hbi hbr hbt hbu hcb hcc hcd hch hci hcr hct hdb hdc hdd hdh hdi hdr hdt hdu hhb hhc hhd hhh hhi hhr hht hhu hib hic hid hih hii hir hit hiu hr- hrb hrc hrd hrh hri hrr hrt hru htb htc htd hth hti htr htt hub huc hud huh hui hur hut huu i-d ibb ibc ibd ibh ibi ibr ibt ibu icb icc icd ich ici icr ict icu idb idc idd idh idi idr idt idu ihb ihc ihd ihh ihi ihr iht ihu iib iic iid iih iii iir iit iiu ir- irb irc ird iri irr irt iru itb itc itd ith iti itt itu iu- iub iuc iud iui iur iut rbb rbc rbd rbh rbi rbr rbt rbu rcb rcc rcd rch rci rcr rct rcu rdb rdc rdd rdh rdi rdr rdt rdu rh- rhb rhc rhd rhh rhi rhr rht rhu rib ric rid rih rii rir rit rrb rrc rrd rrh rri rrr rrt rru rtb rtc rtd rti rtr rtt rtu rub ruc rud ruh rui rur rut ruu tbb tbc tbd tbh tbi tbr tbt tbu tcb tcc tcd tch tci tcr tct tcu tdb tdc tdd tdh tdi tdr tdt tdu th- thb thc thd thh thi thr tht thu tib tic tid tih tii tir tit tiu trb trc trd trh tri trr trt tru ttb ttc ttd tth tti ttr ttt ttu tub tuc tud tuh tui tur tut tuu ubb ubc ubh ubi ubr ubt ubu ucb ucc ucd uch uci ucr uct ucu udb udc udd udi udr udt udu uhb uhc uhd uhh uhi uhr uht uhu uib uic uid uii uir uit uiu ur- urb urc urd uri urr urt uru utb utc utd uth uti utr utt utu uuc uur uut uuu