C312322331333132212111133133313331323133313221211111211111333232222131   >>    C31232233133313221211113313331333132313331322121111121111133323222213   <<    C312322331333132212111133133313331323133313221211111211111333232222133   >>      C312322331333132212111133133313331323133313221211111211111333232222132   >>