C312322331333132212111133133313331323133313221211111211111113231313231   >>    C31232233133313221211113313331333132313331322121111121111111323131323   <<    C312322331333132212111133133313331323133313221211111211111113231313233   >>      C312322331333132212111133133313331323133313221211111211111113231313232   >>