D212213231311233131122112313331323331323331323132313232233132321311   >>    D21221323131123313112211231333132333132333132313231323223313232131   <<    D212213231311233131122112313331323331323331323132313232233132321313   >>      D212213231311233131122112313331323331323331323132313232233132321312   >>