#include <stdio.h>
int main()
{
    int m, n;
    printf("Enter number of rows: ");
    scanf("%d", &m);
    printf("Enter number of cols: ");
    scanf("%d", &n);
    int arr[m][n];
    for (int i = 0; i < m; i++)
    {
        for (int j = 0; j < n; j++)
        {
            printf("Enter number for arr[%d][%d]: ", i, j);
            scanf("%d", &arr[i][j]);
        }
    }
    printf("Your 2D matrix as follows\n");
    for (int i = 0; i < m; i++)
    {
        for (int j = 0; j < n; j++)
        {
            printf("%d ", arr[i][j]);
        }
        printf("\n");
    }
}