D121212122132313231323233231323223313232233131131211233132313211   >>    D12121212213231323132323323132322331323223313113121123313231321   <<    D121212122132313231323233231323223313232233131131211233132313213   >>      D121212122132313231323233231323223313232233131131211233132313212   >>