#include <stdio.h> void Input_Arr(int arr[][11], int x, int y) { for (int i = 0; i < x; i++) { for (int j = 0; j < y; j++) { scanf("%d", &arr[i][j]); } } } int Count_Arr(int arr[][11], int x, int y) { int count_sum = 0; for (int i = 0; i < x; i++) { for (int j = 0; j < y; j++) { if (arr[i][j] > 0) { count_sum += arr[i][j]; } } } return count_sum; } int main() { int arr[11][11] = { 0 }; int x = 0; int y = 0; scanf("%d %d", &x, &y); Input_Arr(arr, x, y); int ret = Count_Arr(arr, x, y); printf("%d\n", ret); return 0; }