Positions Of

package MultidimensionalArrays;

import java.util.Scanner;

public class PositionsOf {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String[] matrixSize = scanner.nextLine().split(" ");
        int rows = Integer.parseInt(matrixSize[0]);
        int cols = Integer.parseInt(matrixSize[1]);

        int[][] matrix = new int[rows][cols];

        for (int row = 0; row < matrix.length; row++) {
            String[] line = scanner.nextLine().split(" ");
            for (int col = 0; col < matrix[0].length; col++) {
                matrix[row][col] = Integer.parseInt(line[col]);
            }
        }
        int searchNumber = scanner.nextInt();
        boolean isFound = false;

        for (int r = 0; r < matrix.length; r++) {
            for (int c = 0; c < matrix[0].length; c++) {
                if (matrix[r][c] == searchNumber) {
                    System.out.println(r + " " + c);
                    isFound = true;
                }
            }
        }
        if (!isFound) {
            System.out.print("not found");
        }
    }
}