C3123223313331322121111331333133313231333133313331333121111331323223321   >>    C312322331333132212111133133313331323133313331333133312111133132322332   <<    C3123223313331322121111331333133313231333133313331333121111331323223323   >>      C3123223313331322121111331333133313231333133313331333121111331323223322   >>