C312322331333132212111133133313331323133313221211113313121123121   >>    C31232233133313221211113313331333132313331322121111331312112312   <<    C312322331333132212111133133313331323133313221211113313121123123   >>      C312322331333132212111133133313331323133313221211113313121123122   >>