A

#include <iostream>
#include <string>

#define faster ios_base::sync_with_stdio(NULL); cin.tie(0); cout.tie(0);
#define input cin("input.txt");
#define output cout("output.txt");
#define ll long long
#define ull unsigned long long
#define F first
#define S second

using namespace std;

int main() {
  int n, m, ans = 0;
  cin >> n >> m;
  for(int i = 0; i < n; i++) {
    string a;
    cin >> a;
    if(a.find('+') != -1)
      ans++;
  }
  cout << ans;
}