C312322331333132212111133133313331333133312121111331333313231323111   >>    C31232233133313221211113313331333133313331212111133133331323132311   <<    C312322331333132212111133133313331333133312121111331333313231323113   >>      C312322331333132212111133133313331333133312121111331333313231323112   >>