b-u bbb bbg bbh bbi bbo bbr bbu bbx bgb bgg bgh bgi bgo bgr bgu bgx bhb bhg bhh bhi bho bhr bhu bhx bi- bib big bih bii bio bir biu bix bob bog boh boi boo bor bou box brb brg brh bri bro brr bru brx bub bug buh bui buo bur buu bux bxb bxi bxo bxx gbg gbh gbi gbo gbr gbu gbx ggb ggg ggh ggi ggo ggr ggu ghb ghg ghh ghi gho ghr gib gig gih gii gio gir giu gob gog goh goi goo gor gou gox grb grg grh gri gro grr gru grx gu- gub gug gui guo gur guu h-i hbb hbg hbh hbi hbo hbr hbu hbx hgb hgg hgh hgi hgo hgr hgu hhb hhg hhh hhi hho hhr hhu hib hig hih hii hio hir hiu hix hob hog hoh hoi hoo hor hou hox hr- hrb hrg hrh hri hro hrr hru hub hug huh hui huo hur huu hux ibb ibg ibh ibi ibo ibr ibu ibx igb igg igh igi igo igr igu ihb ihg ihh ihi iho ihr ihu iib iih iii iio iir iiu iix io- iob iog ioh ioi ioo ior iou ir- irb irg iri iro irr iru irx iu- iub iug iui iur ixi o-i ob- obb obg obh obi obo obr obu obx ogg ogh ogi ogo ogx ohg ohh ohi oho ohr ohu oib oii oio oir oiu oo- oob oog ooh ooi ooo oor oox or- orb org orh ori oro orr oru orx ou- ouh oui ouo our ox- oxb oxi oxo oxx rbb rbg rbh rbi rbo rbr rbu rbx rgb rgg rgh rgi rgo rgr rgx rh- rhb rhg rhh rhi rho rhr rhu rib rig rih rii rio rir rix rob rog roh roi roo ror rou rox rrb rrg rrh rri rrr rru rub rug ruh rui ruo rur ruu rux rxr ubb ubg ubh ubi ubo ubr ubu ubx ugb ugg ugh ugi ugo ugr ugu ugx uhb uhh uhi uho uhr uhu uib uig uii uio uir uiu uob uog uoo uor uox ur- urb urg uri uro urr uru urx uug uur uuu uxb uxo uxr uxu xbr xbx xgi xii xio xiu xix xog xoi xoo xor xox xrx xui xxi xxo xxx