4 32
C DDC D D CBA AB C D C D A DB DACB AA CAAB A D CCBA A DBBD BBCB CBD AADC BA DAA BDBC AAA CCA DA AD BBC CBCA 
D DCA A A CDD CA C B B D D CD DDDC BB CDBC B A BCDC D CDAA CBBA CBD ACAA DC DBA DBAB ADD CDB AB CC CCA DBBD