C313212111133131211331333133313331333133313231333133313331333132321123223311   >>    C31321211113313121133133313331333133313331323133313331333133313232112322331   <<    C313212111133131211331333133313331333133313231333133313331333132321123223313   >>      C313212111133131211331333133313331333133313231333133313331333132321123223312   >>