D23312331311331313231323131111233132322132322331323223311212311   >>    D2331233131133131323132313111123313232213232233132322331121231   <<    D23312331311331313231323131111233132322132322331323223311212313   >>      D23312331311331313231323131111233132322132322331323223311212312   >>