#include <iostream>
#include <bitset>
#include <algorithm>
using namespace std;
bitset<505> dp[2][505];
bitset<505> base[505];
int r,c,m;
string s;
int main(){
cin >> r >> c >> m;
for(int i = 1;i <= r;i++){
cin >> s;
s = " " + s;
for(int j = 1;j <= c;j++){
base[i][j] = (s[j] == '.');
}
dp[0][i] = base[i];
}
cin >> s;
s = " " + s;
for(int l = 1,k = 1;k <= m;l ^= 1,k++){
for(int i = 1;i <= r;i++){
dp[l][i].reset();
if(s[k] == 'N' || s[k] == '?'){
dp[l][i] |= dp[l ^ 1][i + 1];
}
if(s[k] == 'S' || s[k] == '?'){
dp[l][i] |= dp[l ^ 1][i - 1];
}
if(s[k] == 'S' || s[k] == 'N'){
goto done1;
}
for(int j = 1;j <= c;j++){
if(s[k] == 'E' || s[k] == '?'){
dp[l][i][j] = dp[l][i][j] | dp[l ^ 1][i][j - 1];
}
if(s[k] == 'W' || s[k] == '?'){
dp[l][i][j] = dp[l][i][j] | dp[l ^ 1][i][j + 1];
}
}
done1:
dp[l][i] &= base[i];
}
}
int ans = 0;
for(int i = 1;i <= r;i++){
for(int j = 1;j <= c;j++){
ans += (dp[m & 1][i][j]);
}
}
cout << ans << "\n";
return 0;
}
