iii iim iin iip iis iit im- imi imm imn imp ims imt in- ini inm inn inp ins int ipi ipm ipn ipp ips ipt is- isi ism isn isp iss ist iti itm itn itp its itt mi- mii mim min mip mis mit mmi mmm mmn mmp mms mmt mni mnm mnn mnp mns mnt mpi mpm mpn mpp mps mpt msi msm msn msp mss mst mti mtm mtn mtp mts mtt n-i nii nim nin nip nis nit nmi nmm nmn nmp nms nmt nni nnm nnn nnp nns nnt npi npm npn npp nps npt nsi nsm nsn nsp nss nst nti ntm ntn ntp nts ntt p-p pii pim pin pip pis pit pmi pmm pmn pmp pms pmt pn- pni pnm pnn pnp pns pnt ppi ppm ppn ppp pps ppt ps- psi psm psn psp pss pst pt- pti ptm ptn ptp pts ptt sii sim sin sip sis sit smi smm smn smp sms smt sni snm snn snp sns snt spi spm spn spp sps spt ss- ssi ssm ssn ssp sss sst sti stm stn stp sts stt tii tim tin tip tis tit tmi tmm tmn tmp tms tmt tni tnm tnn tnp tns tnt tpi tpm tpn tpp tps tpt tsi tsm tsn tsp tss tst tti ttm ttn ttp tts ttt