-ic bbb bbc bbe bbg bbi bbm bbn bbo bbs bcb bcc bce bcg bci bcm bcn bco bcs be- beb bec bee beg bei bem ben beo bes bgb bgc bge bgg bgi bgm bgn bgo bgs bi- bib bic bie big bii bim bin bio bis bmb bmc bme bmg bmi bmm bmn bmo bms bnb bnc bne bng bni bnn bno bns bob boc boe bog boi bom bon boo bos bsb bsc bse bsg bsi bsm bsn bso bss c-- cbb cbc cbe cbg cbi cbm cbn cbo cbs ccb ccc cce ccg cci ccm ccn cco ccs ce- ceb cec cee ceg cei cem cen ceo ces cgb cgc cge cgg cgi cgm cgn cgo cgs ci- cib cic cie cig cii cim cin cio cis cmb cmc cme cmg cmi cmm cmn cmo cms cn- cnb cnc cne cng cni cnm cnn cno cns co- cob coc coe cog coi com con coo cos csb csc cse csg csi csm csn cso css ebb ebc ebe ebg ebi ebm ebn ebo ebs ec- ecb ecc ece ecg eci ecm ecn eco ecs eeb eec eee eeg eem een eeo ees egb egc ege egg egi egm egn ego egs eib eic eie eig eii eim ein eio eis em- emb emc eme emg emi emm emn emo ems en- enb enc ene eng eni enm enn eno ens eo- eob eoc eoe eog eoi eom eon eoo eos es- esb esc ese esg esi esm esn eso ess gbc gbe gbg gbi gbm gbn gbo gbs gcb gcc gce gcg gci gcm gcn gco gcs ge- geb gec gee geg gei gem gen geo ges ggb ggc ggg ggi ggm ggn ggo ggs gib gic gie gig gii gim gin gio gis gmb gmc gme gmg gmi gmm gmn gmo gms gnb gnc gne gni gnm gnn gno gns gob goc goe gog goi gom gon goo gos gsb gsc gse gsg gsi gsm gsn gso gss ibb ibc ibe ibg ibi ibm ibn ibo ibs icb icc ice icg ici icm icn ico ics ie- iec iee ieg iei iem ien ies igb igc ige igg igi igm ign igo igs iib iic iie iii iim iin iio iis im- imb imc ime img imi imm imn imo ims in- inb inc ine ing ini inm inn ino ins io- iob ioc ioe iog ioi iom ion ioo ios is- isb isc ise isg isi ism isn iso iss m-o mbb mbc mbe mbg mbi mbm mbo mbs mc- mcb mcc mce mcg mci mcm mcn mco mcs meb mec mee meg mei mem men meo mes mgb mgc mge mgi mgm mgn mgo mgs mi- mib mic mie mig mii mim min mio mis mmb mmc mme mmg mmi mmm mmn mmo mms mnb mnc mne mng mni mnm mnn mno mns mob moc moe mog moi mom mon moo mos msb msc mse msg msi msm msn mso mss n-i nbb nbc nbe nbg nbi nbm nbn nbo nbs ncb ncc nce ncg nci ncm ncn nco ncs ne- neb nec nee neg nei nem nen neo nes ngb ngc nge ngg ngi ngm ngn ngo ngs nib nic nie nig nii nim nin nio nis nmb nmc nme nmg nmi nmm nmn nmo nms nnb nnc nne nng nni nnm nnn nno nns no- nob noc noe nog noi nom non noo nos nsb nsc nse nsg nsi nsm nsn nso nss o-i ob- obb obc obe obg obi obm obn obo obs oc- ocb occ ocg oci ocm ocn oco ocs oeb oec oee oeg oei oem oen oeo oes ogc oge ogg ogi ogn ogo ogs oib oic oie oii oim oin oio ois om- omb omc ome omg omi omm omn omo oms on- onb onc one ong oni onn ono ons oo- oob ooc oog ooi oom oon ooo oos os- osb osc ose osg osi osm osn oso oss sbb sbc sbe sbg sbi sbm sbn sbo sbs scb scc sce scg sci scm scn sco scs se- seb sec see seg sei sem sen seo ses sgb sgc sge sgg sgi sgm sgn sgo sgs sib sic sie sig sii sim sin sio sis smb smc sme smg smi smm smn smo sms snb snc sne sng sni snm snn sno sns sob soc soe sog soi som son soo sos ss- ssb ssc sse ssg ssi ssm ssn sso sss