#include <stdio.h>

int main()
{
    int matrix[100][100];
    int m, n, row, column;
    int center, up, down, left, right;

    scanf("%d %d", &m, &n);

    for (row = 0; row < m; row++)
        for (column = 0; column < n; column++)
            scanf("%d" , &matrix[row][column]);


    /*
                    up
                    |
        left - center - right
                    |
                  down
    */

    for (row = 0; row < n; row++)
        for (column = 0; column < n; column++)
        {
            center = matrix[row][column];
            up = matrix[row - 1][column];
            down = matrix[row + 1][column];
            left = matrix[row][column - 1];
            right = matrix[row][column + 1];

            // top - left corner
            if (row == 0 && column == 0)
            {
                if (center < right && center < down)
                    {
                        printf("%d ", center);
                        continue;
                    }
            }
            // top - right corner
            else if (row == 0 && column == n - 1)
            {
                if (center < left && center < down)
                    {
                        printf("%d ", center);
                        continue;
                    }
            }
            // bottom - left corner
            else if (row == m - 1 && column == 0)
            {
                if (center < up && center < right)
                    {
                        printf("%d ", center);
                        continue;
                    }
            }
            // bottom - right corner
            else if (row == m - 1 && column == n - 1)
            {
                if (center < left && center < up)
                    {
                        printf("%d ", center);
                        continue;
                    }
            }
            // upper row
            else if (row == 0 && (column > 0 && column < n - 1))
            {
                if (center < left && center < right && center < down)
                    {
                        printf("%d ", center);
                        continue;
                    }
            }
            // lower row
            else if (row == m - 1 && (column > 0 && column < n - 1))
            {
                if (center < left && center < right && center < up)
                    {
                        printf("%d ", center);
                        continue;
                    }
            }
            // left column
            else if (column == 0 && (row > 0 && row < m - 1))
            {
                if (center < up && center < down && center < right)
                    {
                        printf("%d ", center);
                        continue;
                    }
            }
            // right column
            else if (column == n - 1 && (row > 0 && row < m - 1))
            {
                if (center < left && center < up && center < down)
                    {
                        printf("%d", center);
                        continue;
                    }
            }
            // remainder
            else if (center < right && center < left && center < up && center < down)
                printf("%d ", center);
        }
}