net 7 8
    ##
  ######
######  ##
    ##
    ##    ## 
    ##  ######
    ##    ##
    ##
                vararbrcua
                ka      aa
                kb      ab
                kc      ac
        vakakbkc##########acabaaua
        la      ##      ##      ba
        lb      ##      ##      bb
        lc      ##      ##      bc
vbmambmcvz##############qzpapbpcuzcacbccub
na      ##      ##      pd      qa      da
nb      ##      ##      pe      qb      db
nc      ##      ##      pf      qc      dc
vcoaobocvdodoeof########qyeaebecudedeeefuc
                of      ea
                oe      eb
                od      ec
                vd######ud              qzpapbpcuz
                oc      ed              sj      sa 
                ob      ee              sk      sb
                oa      ef              sl      sc
                vc######uc      qzsjsksl##########scsbsauz 
                nc      dc      pd      ##      ##      qa
                nb      db      pe      ##      ##      qb 
                na      da      pf      ##      ##      qc 
                vb######ub      qysishsg##########sdsesfud
                ma      cc              sg      sd       
                mb      cb              sh      se
                mc      ca              si      sf
                vz######uz              qyeaebecud
                lc      bc
                lb      bb
                la      ba
                vararbrcua
