# include <stdio.h>

int main (){
    int m,n;
    int sum;
    
    
    printf("sample input 1:\n");
    scanf("%d %d", &m, &n);
    int matrix [m][n];
    sum = 0;
    for (int i = 0;  i < m; i++) {
        for (int j = 0; j < n ; j++) {
            scanf("%d ", &matrix1 [i][j]);
            sum += matrix1[i][j];
        }
    }
    printf("sample output 1: %d\n", sum);
    
    
    printf ("sample input 2:\n");
    scanf("%d %d", &m, &n);
    int matrix2[m][n];
    sum = 0;
    for(int i = 0; i < m; i++){
        for(int j = 0; j < n; j++) {
            scanf("%d", &matrix2[i][j]);
            sum +=matrix2[i][j];
        }
    }
    printf("sample output 2: %d\n" , sum);
    
    return 0;
}