#include <iostream>
using namespace std;
int main() {
int h, w, sum=0;
cin >> h >> w;
char ara[h][w];
for(int i=0; i<h; i++){
for(int j=0; j<w; j++){
cin >> ara[i][j];
if(ara[i][j] == '#')
sum++;
}
}
cout << sum;
return 0;
}
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