C312322331333132212111133133313331323133313221211111211113313123111   >>    C31232233133313221211113313331333132313331322121111121111331312311   <<    C312322331333132212111133133313331323133313221211111211113313123113   >>      C312322331333132212111133133313331323133313221211111211113313123112   >>