#include <bits/stdc++.h>
using namespace std;

inline bool isMas(char a, char b) {
	return (a == 'M' && b == 'S') || (a == 'S' && b == 'M');
}

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);

	vector<string> lines;
	string line;
	while (getline(cin, line) && !line.empty()) {
		lines.push_back(line);
	}

	int n = 0;
	for (int x = 1; x < lines.size() - 1; x++) {
		for (int y = 1; y < lines[x].size() - 1; y++) {
			if (lines[x][y] == 'A' &&
				isMas(lines[x - 1][y - 1], lines[x + 1][y + 1]) &&
				isMas(lines[x - 1][y + 1], lines[x + 1][y - 1])) {
				n++;
			}
		}
	}
	cout << n << '\n';
}