C3132121111331312113313331333133313331322331323133313232313232331121   >>    C313212111133131211331333133313331333132233132313331323231323233112   <<    C3132121111331312113313331333133313331322331323133313232313232331123   >>      C3132121111331312113313331333133313331322331323133313232313232331122   >>