C312322331333132212111133133313331323133313221211111331123123121   >>    C31232233133313221211113313331333132313331322121111133112312312   <<    C312322331333132212111133133313331323133313221211111331123123123   >>      C312322331333132212111133133313331323133313221211111331123123122   >>