-er a-a a-b a-i aaa aab aae aag aah aai aan aao aap aar ab- aba abb abe abg abh abi abn abo abp abr aea aeb aee aeg aeh aei aen aeo aep aer ag- aga agb age agg agh agi agn ago agp agr aha ahb ahe ahg ahh ahi ahn aho ahp ahr ai- aia aib aie aig aih aii ain aio aip air an- ana anb ane ang anh ani ann ano anp anr aoa aob aoe aog aoh aoi aon aoo aop aor ap- apa apb ape apg aph api apn apo app apr ar- ara arb are arg arh ari arn aro arp arr b-p baa bab bae bag bah bai ban bao bap bar bba bbb bbe bbg bbh bbi bbn bbo bbp bbr be- bea beb bee beg beh bei ben beo bep ber bga bgb bge bgg bgh bgi bgn bgo bgp bgr bha bhb bhe bhg bhh bhi bho bhp bhr bi- bia bib bie big bih bii bin bio bip bir bna bnb bne bng bni bnn bno bnp bnr boa bob boe bog boh boi bon boo bop bor bpa bpb bpe bpg bph bpi bpn bpo bpp bpr bra brb bre brg brh bri brn bro brp brr eaa eab eae eag eah eai ean eao eap ear eba ebb ebe ebg ebh ebi ebn ebo ebp ebr eea eeb eee eeg een eeo eep eer ega egb ege egg egh egi egn ego egp egr eha ehb ehe ehg ehh ehi ehn eho ehp ehr eia eib eie eig eii ein eio eip eir en- ena enb ene eng enh eni enn eno enp enr eo- eoa eob eoe eog eoh eoi eon eoo eop eor ep- epa epb epe epg eph epi epn epo epp epr era erb ere erg erh eri ern ero erp err g-p gaa gab gae gag gah gai gan gao gap gar gba gbe gbg gbh gbi gbn gbo gbp gbr ge- gea geb gee geg geh gei gen geo gep ger gga ggb ggg ggh ggi ggn ggo ggp ggr gha ghb ghe ghg ghh ghi ghn gho ghp ghr gia gib gie gig gih gii gin gio gip gir gna gnb gne gni gnn gno gnp gnr goa gob goe gog goh goi gon goo gop gor gpa gpb gpe gpg gph gpi gpn gpo gpp gpr gra grb gre grg grh gri grn gro grp grr h-i haa hab hae hag hah hai han hao hap har hba hbb hbe hbg hbh hbi hbn hbo hbp hbr he- hea heb hee heg heh hei hen heo hep her hga hgb hge hgg hgh hgi hgn hgo hgp hgr hha hhb hhe hhg hhh hhi hhn hho hhp hhr hia hib hie hig hih hii hin hio hip hir hna hnb hne hng hnh hnn hno hoa hob hoe hog hoh hoi hon hoo hop hor hpa hpb hpe hpg hph hpi hpn hpo hpp hpr hr- hra hrb hre hrg hrh hri hrn hro hrp hrr ia- iaa iab iae iag iah iai ian iao iap iar iba ibb ibe ibg ibh ibi ibn ibo ibp ibr ie- iea iee ieg iei ien iep ier iga igb ige igg igh igi ign igo igp igr iha ihb ihe ihg ihh ihi ihn iho ihp ihr iia iib iie iih iii iin iio iip iir in- ina inb ine ing inh ini inn ino inp inr io- ioa iob ioe iog ioh ioi ion ioo iop ior ipa ipb ipe ipg ipi ipn ipo ipp ipr ir- ira irb ire irg iri irn iro irp irr n-i naa nab nae nag nah nai nan nao nap nar nba nbb nbe nbg nbi nbn nbo nbp nbr ne- nea neb nee neg neh nei nen neo nep ner nga ngb nge ngg ngh ngi ngn ngo ngp nha nhb nhe nhg nhh nhi nhn nhp nhr nia nib nie nig nih nii nin nio nip nir nna nnb nne nng nnh nni nnn nno nnp no- noa nob noe nog noh noi non noo nop nor npa npb npe npg nph npi npn npo npp npr nra nrb nre nrg nri nrn nro nrp nrr o-i oaa oab oae oag oah oai oan oao oap oar ob- oba obb obe obg obh obi obn obo obp obr oea oeb oee oeg oeh oei oen oeo oep oer oga oge ogg ogh ogi ogn ogo ogp oha ohe ohg ohh ohi ohn oho ohp ohr oia oib oie oii oin oio oip oir on- ona onb one ong onh oni onn ono onp onr oo- ooa oob oog ooh ooi oon ooo oop oor op- opa opb ope opg oph opi opn opo opp opr or- ora orb ore org orh ori orn oro orp orr p-p paa pab pae pag pah pai pan pao pap par pba pbb pbe pbg pbi pbn pbo pbp pbr pea peb pee peg peh pei pen peo pep per pga pgb pge pgg pgh pgi pgn pgo pgp pgr pha phb phe phg phi phn pho php phr pia pib pie pig pih pii pin pio pip pir pn- pna pnb pne png pnh pni pnn pno pnp pnr poa pob poe pog poh poi pon poo pop por ppa ppb ppe ppg pph ppi ppn ppo ppp ppr pra prb pre prg prh pri prn pro prp prr ra- raa rab rae rag rah rai ran rao rap rar rba rbb rbe rbg rbh rbi rbn rbo rbp rbr re- rea reb ree reg reh rei ren reo rep rer rga rgb rge rgg rgh rgi rgn rgo rgp rgr rh- rha rhb rhe rhg rhh rhi rhn rho rhp rhr ria rib rie rig rih rii rin rio rip rir rna rnb rng rnh rni rnn rno rnp rnr roa rob roe rog roh roi ron roo rop ror rpa rpb rpe rpg rph rpi rpn rpo rpp rpr rra rrb