#include <iostream>
#include <vector>
#include <string>
#include <set>
using namespace std;
int R, C, M;
vector<string> grid;
string signals;
int dx[4] = {-1, 0, 1, 0}; // N, E, S, W
int dy[4] = {0, 1, 0, -1};
char dir[4] = {'N', 'E', 'S', 'W'};
int main()
{
cin >> R >> C >> M;
grid.resize(R);
for (int i = 0; i < R; i++) {
cin >> grid[i];
}
cin >> signals;
set<pair<int, int>> positions;
// Initialize with all water cells
for (int i = 0; i < R; i++) {
for (int j = 0; j < C; j++) {
if (grid[i][j] == '.') {
positions.insert({i, j});
}
}
}
for (int k = 0; k < M; k++) {
set<pair<int, int>> new_positions;
char s = signals[k];
for (auto pos : positions) {
int x = pos.first;
int y = pos.second;
for (int d = 0; d < 4; d++) {
if (s == '?' || s == dir[d]) {
int nx = x + dx[d];
int ny = y + dy[d];
if (nx >= 0 && nx < R && ny >= 0 && ny < C && grid[nx][ny] == '.') {
new_positions.insert({nx, ny});
}
}
}
}
positions = new_positions;
if (positions.empty()) break;
}
cout << positions.size() << endl;
return 0;
}
