dddd dfdt dfrf dfri dftg dftr didi dif- diff digg digi diii dipp dipt dird dirr dirt diti ditt dpdt dprg drif drip drit dtdp dttp fdti ffff ffii ffrr fftf fidf fiff fifi fift figg fiii fipp fiti fitt fpdt fpgt fprf frid frig frip frit frpd ftdi ftgd ftii gdfr gdrt gftp ggfg gggg gidd gidi giff gift gigg gigi gipf gipi gipp gird girg giri girr girt gpdf gpgp gpip gprd gprp grid grif grig grip grit grrr gtip idfp idgf idid idig idir idrf idtp ifid ifit ifrf ifri igri iiii iiit iipf iitr iitt ipdi ipid ippf ippr ipri irdp iri- irid irig irip irri irtf irti irtp itif itrf itri ittf pdpr pfff pffr pfft pfit piff pigf pigg pigp pigt piip pipi pipp pirg piri pirr pitf piti pitr pitt ppgi ppid ppif ppig pppd pppp pprf pptt pri- prid prif prig prii prpd prrd prri prti prtp prtr ptpd ptrd ptrf rfdi rfid rgit rgtr ridd ridi riff rift rigg rigi riif ripd ripi ripp ripr ript riri riti ritt rpdp rpii rptd rrif rrrr rtdt rttp tdff tdri tfpt tftp tgif tidd tiff tift tigi tigr tiit tip- tipi tipp tipt tird tiri tirr titi titp titt tpdf tpir tppd tppp tppr tptp tptr trfd trfr tri- trif trig trip trit trpg trpp trtr ttff tttt