C31232233133313221211113313331333132313331322121133133313231333123121   >>    C3123223313331322121111331333133313231333132212113313331323133312312   <<    C31232233133313221211113313331333132313331322121133133313231333123123   >>      C31232233133313221211113313331333132313331322121133133313231333123122   >>