C13332313311211111333133313113313331333132233133313113311233132212311   >>    C1333231331121111133313331311331333133313223313331311331123313221231   <<    C13332313311211111333133313113313331333132233133313113311233132212313   >>      C13332313311211111333133313113313331333132233133313113311233132212312   >>