eee eek eem eep eie eii eik eim eip eke eki ekp em- eme emi emk emm emp ep- epe epi epm epp ie- iee iei iek iem iep iie iii iim iip ike iki ikk im- ime imi imm imp ipe ipi ipm ipp ke- kee kei kek kem kep kie kii kik kim kip kke kki kkk kkm kkp kme kmi kmk kmm kmp kpe kpi kpk kpm kpp mee mei mek mem mep mi- mie mii mik mim mip mke mkk mkm mkp mme mmi mmk mmm mmp mpe mpi mpk mpm mpp p-p pee pei pek pem pep pie pii pik pim pip pke pki pkm pkp pme pmi pmk pmm pmp ppe ppi ppk ppm ppp