-ic b-u bbb bbc bbd bbi bbs bbu bcb bcc bcd bci bcs bcu bcv bdb bdc bdd bdi bds bdu bdv bi- bib bic bid bii bis biu biv bsb bsc bsd bsi bss bsu bsv bub buc bud bui bus buu bvb bvc bvd bvi bvs bvu bvv c-- cbb cbc cbd cbi cbs cbu cbv ccb ccc ccd cci ccs ccu ccv cdb cdc cdd cdi cds cdu cdv ci- cib cic cid cii cis ciu civ csb csc csd csi css csu csv cub cuc cud cui cus cuu cuv cvb cvc cvd cvi cvs cvu cvv dbb dbc dbd dbi dbs dbu dbv dcb dcc dcd dci dcs dcu dcv ddb ddc ddd ddi dds ddu di- dib dic did dii dis diu div dsb dsc dsd dsi dss dsu dsv dub duc dud dui dus duv dvb dvc dvd dvi dvs dvu i-d i-v ibb ibc ibd ibi ibs ibu ibv icb icc icd ici ics icu icv idb idc idd idi ids idu idv iib iic iid iii iis iiu is- isb isc isd isi iss isu isv iu- iub iuc iud iui ius ivb ivc ivd ivi ivs ivu ivv sbb sbc sbd sbi sbs sbu sbv scb scc scd sci scs scu scv sdb sdc sdd sdi sds sdu sdv sib sic sid sii sis siu siv ss- ssb ssc ssd ssi sss ssu ssv sub suc sud sui sus suu suv svb svc svd svi svs svu svv ubb ubc ubi ubs ubu ubv ucb ucc ucd uci ucs ucu ucv udb udc udd udi uds udu udv uib uic uid uii uis uiu usb usc usd usi uss usu usv uuc uus uuu uvb uvc uvs uvu uvv vbc vbd vbi vbs vbv vcc vcd vci vcs vcu vdb vdc vdd vdi vds vdu vdv vi- vib vic vid vii vis viu viv vsb vsc vsd vsi vss vsu vsv vus vuv vvb vvc vvi vvs vvv