hdu 1241

#include <iostream>
using namespace std;
char a[105][105], v[105][105];
int n, m;
void dfs(int x, int y)
{
	if (x < 0 || y < 0 || x >= n || y >= m)return;
	if (a[x][y] == '*' || v[x][y])return;
	v[x][y] = 1;
	dfs(x - 1, y - 1);
	dfs(x - 1, y);
	dfs(x - 1, y + 1);
	dfs(x, y - 1);
	dfs(x, y + 1);
	dfs(x + 1, y - 1);
	dfs(x + 1, y);
	dfs(x + 1, y + 1);
}
int main()
{
	while (cin >> n >> m && (m != 0 && n != 0)) {
		memset(v, 0, sizeof(v));
		memset(a, 0, sizeof(a));
		for (int i = 0; i < n; i++)
			for (int j = 0; j < m; j++)
				cin >> a[i][j];
		int cnt = 0;
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < m; j++) {
				if (a[i][j] == '@' && !v[i][j]) {
					dfs(i, j);
					cnt++;
				}
			}
		}
		printf("%d
", cnt);
	}
	return 0;
}