C22121333132313311211113313331333132233131133133313232233131133132321111   >>    C2212133313231331121111331333133313223313113313331323223313113313232111   <<    C22121333132313311211113313331333132233131133133313232233131133132321113   >>      C22121333132313311211113313331333132233131133133313232233131133132321112   >>