C123211131133132233131323132313233313233313132313133313232111311   >>    C12321113113313223313132313231323331323331313231313331323211131   <<    C123211131133132233131323132313233313233313132313133313232111313   >>      C123211131133132233131323132313233313233313132313133313232111312   >>