C13332313311211111333133313113313331333132233133313233313232223221   >>    C1333231331121111133313331311331333133313223313331323331323222322   <<    C13332313311211111333133313113313331333132233133313233313232223223   >>      C13332313311211111333133313113313331333132233133313233313232223222   >>