import java.util.Scanner;

              public class LowerTriangularMatrix7078 {
                  public static void main(String[] args) {
                      Scanner scanner = new Scanner(System.in);
              
                      // Get the order of the square matrix from the user
                      System.out.print("Enter the order of the square matrix: ");
                      int order = scanner.nextInt();
              
                      // Create the square matrix
                      int[][] matrix = new int[order][order];
                      System.out.println("Enter elements for the matrix:");
                      inputMatrix(matrix, scanner);
              
                      // Display the lower triangular matrix
                      System.out.println("Lower Triangular Matrix:");
                      displayLowerTriangularMatrix(matrix);
              
                      // Close the scanner
                      scanner.close();
                  }
              
                  // Function to input elements into a square matrix
                  private static void inputMatrix(int[][] matrix, Scanner scanner) {
                      for (int i = 0; i < matrix.length; i++) {
                          for (int j = 0; j < matrix[0].length; j++) {
                              System.out.print("Enter element at position [" + (i + 1) + "][" + (j + 1) + "]: ");
                              matrix[i][j] = scanner.nextInt();
                          }
                      }
                  }
              
                  // Function to display the lower triangular matrix
                  private static void displayLowerTriangularMatrix(int[][] matrix) {
                      for (int i = 0; i < matrix.length; i++) {
                          for (int j = 0; j < matrix[0].length; j++) {
                              if (i >= j) {
                                  System.out.print(matrix[i][j] + " ");
                              } else {
                                  System.out.print("0 ");
                              }
                          }
                          System.out.println(); // Move to the next row
                      }
                  }
              }