#include<stdio.h>
#include<string.h>
char map[1000][1000];
void findone(int n, int i, int j)
{
    if (i < 0 || j < 0 || i > n - 1 || j > n - 1)
        return ;

    if (map[i][j] == '.') return ;
    else {
        map[i][j] = '.';
        findone(n, i - 1, j);
        findone(n, i, 1 + j);
        findone(n, i, j - 1);
        findone(n, i + 1, j);
    }
}
int main()
{
    gets(map[0]);
    int n = strlen(map[0]);

    for (int i = 1; i < n; ++i)
        gets(map[i]);

    int total = 0;

    for (int i = 0; i < n; ++i)
        for (int j = 0; j < n; ++j)
            if (map[i][j] == '*') {
                //              printf("%d@%d\n",i,j);
                findone(n, i, j);
                ++total;
            }

    printf("%d\n", total);
    return 0;
}