D13133313131323131323331323232132322331323223313132323132313231311   >>    D1313331313132313132333132323213232233132322331313232313231323131   <<    D13133313131323131323331323232132322331323223313132323132313231313   >>      D13133313131323131323331323232132322331323223313132323132313231312   >>