D12112221323331322331323132211233132313132332313232233132322332311   >>    D1211222132333132233132313221123313231313233231323223313232233231   <<    D12112221323331322331323132211233132313132332313232233132322332313   >>      D12112221323331322331323132211233132313132332313232233132322332312   >>