D1122211211331313331323221123313233313112211232233131333132323132313233311   >>    D112221121133131333132322112331323331311221123223313133313232313231323331   <<    D1122211211331313331323221123313233313112211232233131333132323132313233313   >>      D1122211211331313331323221123313233313112211232233131333132323132313233312   >>