#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
const int N=505;
char a[N][N];
signed main(){
ios_base::sync_with_stdio();
cin.tie(0);cout.tie(0);
int n,m,k;
cin>>n>>m>>k;
set <pair <int,int> > v1,v2;
for(int i=0;i<n;i++){
for(int j=0;j<m;j++){
cin>>a[i][j];
if(a[i][j]=='.')v1.insert({i,j});
}
}
string s;cin>>s;
s=' '+s;
for(int x=0;x<k;x++){
for(auto y : v1){
int i=y.ff,j=y.ss;
if((s[x+1]=='W' or s[x+1]=='?') && j-1>=0 && a[i][j-1]=='.')v2.insert({i,j-1});
if((s[x+1]=='E' or s[x+1]=='?') && j+1<m && a[i][j+1]=='.')v2.insert({i,j+1});
if((s[x+1]=='S' or s[x+1]=='?') && i+1<n && a[i+1][j]=='.')v2.insert({i+1,j});
if((s[x+1]=='N' or s[x+1]=='?') && i-1>=0 && a[i-1][j]=='.')v2.insert({i-1,j});
}
swap(v1,v2);
v2.clear();
}
cout<<v1.size();
}
/*
5 9 7
...##....
..#.##..#
..#....##
.##...#..
....#....
WS?EE??
*/
