C31232233133313221211113313331333132313331322121111331223323321   >>    C3123223313331322121111331333133313231333132212111133122332332   <<    C31232233133313221211113313331333132313331322121111331223323323   >>      C31232233133313221211113313331333132313331322121111331223323322   >>