C312322331333132212111133133313331323133313221211111211113313123223331221   >>    C31232233133313221211113313331333132313331322121111121111331312322333122   <<    C312322331333132212111133133313331323133313221211111211113313123223331223   >>      C312322331333132212111133133313331323133313221211111211113313123223331222   >>