C3123223313331322121111331333133313331333121211113311211331323312213121   >>    C312322331333132212111133133313331333133312121111331121133132331221312   <<    C3123223313331322121111331333133313331333121211113311211331323312213123   >>      C3123223313331322121111331333133313331333121211113311211331323312213122   >>