C212313222213113313112113121111331323132233133313232233133311232323311   >>    C21231322221311331311211312111133132313223313331323223313331123232331   <<    C212313222213113313112113121111331323132233133313232233133311232323313   >>      C212313222213113313112113121111331323132233133313232233133311232323312   >>