-ic bbb bbc bbe bbi bbm bbn bbo bbt bcb bcc bce bci bcm bcn bco bct be- beb bec bee bei bem ben beo bet bi- bib bic bie bii bim bin bio bit bmb bmc bme bmi bmm bmn bmo bmt bnb bnc bne bni bnn bno bnt bob boc boe boi bom bon boo bot btb btc bte bti btm btn bto btt c-- cbb cbc cbe cbi cbm cbn cbo cbt ccb ccc cce cci ccm ccn cco cct ce- ceb cec cee cei cem cen ceo cet ci- cib cic cie cii cim cin cio cit cmb cmc cme cmi cmm cmn cmo cmt cn- cnb cnc cne cni cnm cnn cno cnt co- cob coc coe coi com con coo cot ctb ctc cte cti ctm ctn cto ctt ebb ebc ebe ebi ebm ebn ebo ebt ec- ecb ecc ece eci ecm ecn eco ect eeb eec eee eem een eeo eet eib eic eie eii eim ein eio eit em- emb emc eme emi emm emn emo emt en- enb enc ene eni enm enn eno ent eo- eob eoc eoe eoi eom eon eoo eot etb etc ete eti etm etn eto ett ibb ibc ibe ibi ibm ibn ibo ibt icb icc ice ici icm icn ico ict ie- iec iee iei iem ien iet iib iic iie iii iim iin iio iit im- imb imc ime imi imm imn imo imt in- inb inc ine ini inm inn ino int io- iob ioc ioe ioi iom ion ioo iot itb itc ite iti itm itn ito itt m-o mbb mbc mbe mbi mbm mbo mbt mc- mcb mcc mce mci mcm mcn mco mct meb mec mee mei mem men meo met mi- mib mic mie mii mim min mio mit mmb mmc mme mmi mmm mmn mmo mmt mnb mnc mne mni mnm mnn mno mnt mob moc moe moi mom mon moo mot mtb mtc mte mti mtm mtn mto mtt n-i nbb nbc nbe nbi nbm nbn nbo nbt ncb ncc nce nci ncm ncn nco nct ne- neb nec nee nei nem nen neo net nib nic nie nii nim nin nio nit nmb nmc nme nmi nmm nmn nmo nmt nnb nnc nne nni nnm nnn nno nnt no- nob noc noe noi nom non noo not ntb ntc nte nti ntm ntn nto ntt o-i ob- obb obc obe obi obm obn obo obt oc- ocb occ oci ocm ocn oco oct oeb oec oee oei oem oen oeo oet oib oic oie oii oim oin oio oit om- omb omc ome omi omm omn omo omt on- onb onc one oni onn ono ont oo- oob ooc ooi oom oon ooo oot ot- otb otc ote oti otm otn oto ott tbb tbc tbe tbi tbm tbn tbo tbt tcb tcc tce tci tcm tcn tco tct te- teb tec tee tei tem ten teo tet tib tic tie tii tim tin tio tit tmb tmc tme tmi tmm tmn tmo tmt tnb tnc tne tni tnm tnn tno tnt to- tob toc toe toi tom ton too tot ttb ttc tte tti ttm ttn tto ttt