C111113331333132322331333133313331331121111121133132313331333132313231311311   >>    C11111333133313232233133313331333133112111112113313231333133313231323131131   <<    C111113331333132322331333133313331331121111121133132313331333132313231311313   >>      C111113331333132322331333133313331331121111121133132313331333132313231311312   >>