C13332313311211113313331333133313331323332113313331333132322333132212121   >>    C1333231331121111331333133313331333132333211331333133313232233313221212   <<    C13332313311211113313331333133313331323332113313331333132322333132212123   >>      C13332313311211113313331333133313331323332113313331333132322333132212122   >>