C31232233133313221211113313331333132313331322121133133313232223223313332212321   >>    C3123223313331322121111331333133313231333132212113313331323222322331333221232   <<    C31232233133313221211113313331333132313331322121133133313232223223313332212323   >>      C31232233133313221211113313331333132313331322121133133313232223223313332212322   >>