C312322331333132212111133133313331333133312121111331333222313111   >>    C31232233133313221211113313331333133313331212111133133322231311   <<    C312322331333132212111133133313331333133312121111331333222313113   >>      C312322331333132212111133133313331333133312121111331333222313112   >>