-ic bbb bbc bbd bbg bbi bbn bbo bcb bcc bcd bcg bci bcn bco bdb bdc bdd bdg bdi bdo bgb bgc bgd bgg bgi bgn bgo bi- bib bic bid big bii bin bio bnb bnc bnd bng bni bnn bno bob boc bod bog boi bon boo c-- cbb cbc cbd cbg cbi cbn cbo ccb ccc ccd ccg cci ccn cco cdb cdc cdd cdg cdi cdn cdo cgb cgc cgd cgg cgi cgn cgo ci- cib cic cid cig cii cin cio cn- cnb cnc cnd cng cni cnn cno co- cob coc cod cog coi con coo dbb dbc dbd dbg dbi dbn dbo dcb dcc dcd dcg dci dcn dco ddb ddc ddd ddg ddi ddn ddo dgc dgd dgg dgi dgn di- dib dic did dig dii din dio dnb dnc dnd dng dni dnn dno dob doc dod dog doi don doo g-d gbc gbd gbg gbi gbn gbo gcb gcc gcd gcg gci gcn gco gdb gdc gdd gdi gdn gdo ggb ggc ggd ggg ggi ggn ggo gib gic gid gig gii gin gio gnb gnc gnd gni gnn gno gob goc god gog goi gon goo i-d ibb ibc ibd ibg ibi ibn ibo icb icc icd icg ici icn ico idb idc idd idg idi idn ido igb igc igd igg igi ign igo iib iic iid iii iin iio in- inb inc ind ing ini inn ino io- iob ioc iod iog ioi ion ioo n-i nbb nbc nbd nbg nbi nbn nbo ncb ncc ncd ncg nci ncn nco ndb ndc ndd ndg ndi ndn ndo ngb ngc ngd ngg ngi ngn ngo nib nic nid nig nii nin nio nnb nnc nng nni nnn nno no- nob noc nod nog noi non noo o-i ob- obb obc obd obg obi obn obo oc- ocb occ ocd ocg oci ocn oco odb odc odd odg odi odn odo ogc ogd ogg ogi ogn ogo oib oic oid oii oin oio on- onb onc ond ong oni onn ono oo- oob ooc ood oog ooi oon ooo