D132312121111331313231232313232233132333132322223313233313221323111   >>    D13231212111133131323123231323223313233313232222331323331322132311   <<    D132312121111331313231232313232233132333132322223313233313221323113   >>      D132312121111331313231232313232233132333132322223313233313221323112   >>