iii iil iin iip iir iix il- ili ill iln ilp ilr ilx in- ini inl inn inp inr inx ipi ipl ipn ipp ipr ipx ir- iri irl irn irp irr irx ixi ixl ixn l-p lii lil lin lip lir lix lli lll lln llp llr lni lnl lnn lnp lnr lpi lpl lpn lpp lpr lpx lri lrn lrp lrr lxi lxr lxx n-i nii nil nin nip nir nix nli nll nln nlp nlr nlx nni nnl nnn nnp npi npl npn npp npr nri nrl nrn nrp nrr nrx nxl p-p pii pil pin pip pir pix pli pll pln plp plr plx pn- pni pnl pnn pnp pnr pnx ppi ppl ppn ppp ppr ppx pri prl prn prp prr prx pxl pxr rii ril rin rip rir rix rli rll rln rlp rlr rni rnn rnp rnr rpi rpl rpn rpp rpr rpx rri rrl rrn rrp rrr rxp rxr xii xin xix xli xlr xpl xpn xpp xrx xxi xxl xxp xxx