C312322331333132212111133133313331333133312121111113313113313231323111   >>    C31232233133313221211113313331333133313331212111111331311331323132311   <<    C312322331333132212111133133313331333133312121111113313113313231323113   >>      C312322331333132212111133133313331333133312121111113313113313231323112   >>