C312322331333132212111133133313331312111133132313331331121133132313232223311   >>    C31232233133313221211113313331333131211113313231333133112113313231323222331   <<    C312322331333132212111133133313331312111133132313331331121133132313232223313   >>      C312322331333132212111133133313331312111133132313331331121133132313232223312   >>