C3123223313331322121111331333133313231333132212111133133321222121   >>    C312322331333132212111133133313331323133313221211113313332122212   <<    C3123223313331322121111331333133313231333132212111133133321222123   >>      C3123223313331322121111331333133313231333132212111133133321222122   >>