-ic bbb bbc bbi bbm bbn bbo bbs bby bcb bcc bci bcm bcn bco bcs bcy bi- bib bic bii bim bin bio bis biy bmb bmc bmi bmm bmn bmo bms bnb bnc bni bnn bno bns bob boc boi bom bon boo bos boy bsb bsc bsi bsm bsn bso bss bsy by- byc byi bym byn byo bys c-- cbb cbc cbi cbm cbn cbo cbs cby ccb ccc cci ccm ccn cco ccs ci- cib cic cii cim cin cio cis cmb cmc cmi cmm cmn cmo cms cmy cn- cnb cnc cni cnm cnn cno cns cny co- cob coc coi com con coo cos coy csb csc csi csm csn cso css csy cyb cyc cym cyn cyo cys ibb ibc ibi ibm ibn ibo ibs iby icb icc ici icm icn ico ics icy iib iic iii iim iin iio iis im- imb imc imi imm imn imo ims imy in- inb inc ini inm inn ino ins iny io- iob ioc ioi iom ion ioo ios is- isb isc isi ism isn iso iss isy iyc iym iyo iys iyy m-o mbb mbc mbi mbm mbo mbs mc- mcb mcc mci mcm mcn mco mcs mi- mib mic mii mim min mio mis miy mmb mmc mmi mmm mmn mmo mms mnb mnc mni mnm mnn mno mns mob moc moi mom mon moo mos moy msb msc msi msm msn mso mss msy my- myb myc mym myn myo mys n-i nbb nbc nbi nbm nbn nbo nbs ncb ncc nci ncm ncn nco ncs nib nic nii nim nin nio nis nmb nmc nmi nmm nmn nmo nms nnb nnc nni nnm nnn nno nns no- nob noc noi nom non noo nos noy nsb nsc nsi nsm nsn nso nss nsy nyc nym nyn nyo nys nyy o-i ob- obb obc obi obm obn obo obs oby oc- ocb occ oci ocm ocn oco ocs oib oic oii oim oin oio ois om- omb omc omi omm omn omo oms omy on- onb onc oni onn ono ons ony oo- oob ooc ooi oom oon ooo oos os- osb osc osi osm osn oso oss oyi oyo oys sbb sbc sbi sbm sbn sbo sbs sby scb scc sci scm scn sco scs sib sic sii sim sin sio sis smb smc smi smm smn smo sms smy snb snc sni snm snn sno sns sny sob soc soi som son soo sos soy ss- ssb ssc ssi ssm ssn sso sss sy- syb syc syi sym syn sys ybc ybi ybm ybs yby ycc yci yco ycs ycy yii yim yin yio yis ymc ymi ymm ymo yms ynn yns yny yob yoc yoi yom yon yoo yos yoy ysb ysc ysi ysm yso yss ysy yyb yyc yys yyy