dddd didi diii dimi dimm dimp dipp dipt dird dirr dirt diti ditt dmdt dpdt dpmi drip drit dtdp dtmp dttp iddm idid idir idtp iiii iiit iipm iitm iitr iitt imdi imdt imid imir imit immi immt impi impr impt imri imrr ipdi ipid ipmi ipmp ippr ipri irdp iri- irid irip irri irti irtp itim itri mddm mdii mdmp mdpi mdpp mid- midi miii miit mim- mimd mimi mimp mipi mipr mipt mird miri mirr mirt mit- miti mitm mitt mmdi mmii mmmd mmmm mmpi mmpr mmrp mpir mpit mppp mpri mprp mptp mrdd mrmd mrtm mrtt mtpd mtrr mttr pdmi pdpr piip pimi pimp pimt pipi pipp piri pirr piti pitr pitt pmip pmmp pmpm pmrt ppid pppd pppp pprm pptt pri- prid prii prim prpd prrd prri prrm prti prtm prtp prtr ptmp ptpd ptrd ridd ridi rimi rimm ripd ripi ripp ripr ript riri riti ritt rmrp rpdp rpii rptd rrmp rrrr rtdt rtmi rtmp rttp tdmi tdri tidd tiit timi timm timp tip- tipi tipp tipt tird tiri tirr titi titp titt tmdp tmtt tpir tpmt tppd tppp tppr tptp tptr tri- trim trip trit trmd trmi trpm trpp trtr ttim tttt