C312322331333132212111133133313331333133312121111113313232233312321   >>    C31232233133313221211113313331333133313331212111111331323223331232   <<    C312322331333132212111133133313331333133312121111113313232233312323   >>      C312322331333132212111133133313331333133312121111113313232233312322   >>