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import javax.swing.JOptionPane;
public class San {
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
           String rowString;
           int rowInt;
          
           rowString = JOptionPane.showInputDialog("lines£º");
           rowInt = Integer.parseInt(rowString);
          
           int triangle[][]=new int[rowInt][rowInt * 2 - 1];
          
           for(int i = 0;i < rowInt;i++){
                  for(int j = 0;j < rowInt * 2 -1;j++){
                      triangle[i][j] = -1;
                  }
              }
          
           for(int i = 0;i < rowInt;i++){
               triangle[(rowInt * 2 - 1) / 2 - i][i] = 1;
               triangle[(rowInt * 2 - 1) / 2 - i][rowInt * 2 - 1 - i - 1] = 1;
     


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