C312322331333132212111133133313331323133313221211111122223323221   >>    C31232233133313221211113313331333132313331322121111112222332322   <<    C312322331333132212111133133313331323133313221211111122223323223   >>      C312322331333132212111133133313331323133313221211111122223323222   >>