C312322331333132212111133133313331333133312121111331333131333131123313232223231   >>    C31232233133313221211113313331333133313331212111133133313133313112331323222323   <<    C312322331333132212111133133313331333133312121111331333131333131123313232223233   >>      C312322331333132212111133133313331333133312121111331333131333131123313232223232   >>