-ic c-- ccc cce cch cci cco ccp ccx ce- cec cee ceh cei ceo cep cex ch- chc che chh chi cho chp chx ci- cic cie cih cii cio cip cix co- coc coe coh coi coo cop cox cpc cpe cph cpi cpo cpp cpx cxc cxh cxi cxo cxp cxx ec- ecc ece ech eci eco ecx eec eee eeo eep eex ehc ehe ehh ehi eho ehp eic eie eii eio eip eix eo- eoc eoe eoh eoi eoo eop ep- epc epe eph epi epo epp epx ex- exc exe exh exi exo exp exx h-i hcc hce hch hci hco hcp he- hec hee heh hei heo hep hex hhc hhe hhh hhi hho hhp hic hie hih hii hio hip hix hoc hoe hoh hoi hoo hop hox hpc hpe hph hpi hpo hpp hxc icc ice ich ici ico icp ie- iec iee iei iep iex ihc ihe ihh ihi iho ihp iic iie iih iii iio iip iix io- ioc ioe ioh ioi ioo iop ipc ipe ipi ipo ipp ipx ixc ixe ixi o-i oc- occ och oci oco ocp ocx oec oee oeh oei oeo oep oex ohc ohe ohh ohi oho ohp oic oie oii oio oip oo- ooc ooh ooi ooo oop oox op- opc ope oph opi opo opp opx ox- oxc oxi oxo oxx p-p pcc pce pch pci pco pcp pcx pec pee peh pei peo pep pex phc phe phi pho php phx pic pie pih pii pio pip pix poc poe poh poi poo pop pox ppc ppe pph ppi ppo ppp ppx pxc pxe xch xci xcp xcx xee xep xex xhp xic xie xii xio xix xoc xoi xoo xop xox xpc xpe xpo xpp xxi xxo xxp xxx