#include <stdio.h>

int sunMatrix(int m, int n, int matrix[10] [10]) {
    int sum = 0;
    for (int i = 0; i < m; i++) {
        for(int j = 0;j < n; j++) {
            sum += matrix[i][j];
        }
    }
    return sum;
}

int main() {
    int m, n;
    scanf("%d %d", &m, &n);
    
    int matrix[10][10];
    
    for (int i = 0; i < m; i++) {
        for (int j = 0; j < n; j++) {
            scanf("%d", &matrix[i][j]);
        }
    }
    int total = summatrix(m, n, matrix);
    printf("%d", total);
    
    return 0;
}