#include <bits/stdc++.h>
#define respagold ios_base::sync_with_stdio(0), cin.tie(0);
#define ll long long
//#define int long long
#define int2 __int128_t
#define FOR( i, x, n, d ) for( int i = x; i <= n; i += d )
#define FORR( i, x, n, d ) for( int i = x; i >= n; i -= d )
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x.size())
#define pb push_back
#define ins insert
#define lb lower_bound
#define ub upper_bound
#define pii pair <int, int>
#define mkp make_pair
using namespace std;
const int N = 1e3 + 123;
const int inf = 2e9;
const int MOD1 = 1e9 + 7;
const int MOD = 998244353;
const int P = 6547;
int a[N], b[N], n, m, k, L, R, x, y, z, w;
char mp[N][N]; string s;
bool used[101][101][101], good[101][101];
mt19937 rng( chrono::steady_clock::now().time_since_epoch().count());
int rand( int l, int r )
{
uniform_int_distribution <int> uid( l, r );
return uid( rng );
}
bitset <505> ini[N], bt[N], svo[N], emp, sv1, sv2;
bool valid( int x, int y )
{
if( x < 1 || x > n || y < 1 || y > m || mp[x][y] == '#' ) return 0;
return 1;
}
void change( char ch )
{
if( ch == 'W' )
{
FOR( i, 1, n, 1 ) bt[i] >>= 1, bt[i] &= ini[i];
}
if( ch == 'E' )
{
FOR( i, 1, n, 1 ) bt[i] <<= 1, bt[i] &= ini[i];
}
if( ch == 'S' )
{
FORR( i, n, 1, 1 ) bt[i] = ini[i] & bt[i - 1];
}
if( ch == 'N' )
{
FOR( i, 1, n, 1 ) bt[i] = ini[i] & bt[i + 1];
}
}
void solve()
{
cin >> n >> m >> k;
FOR( i, 0, m + 1, 1 ) emp[i] = 0;
svo[0] = svo[n + 1] = bt[0] = bt[n + 1] = emp;
FOR( i, 1, n, 1 )
{
string s; cin >> s;
ini[i] = bt[i] = emp;
FOR( j, 1, m, 1 ) mp[i][j] = s[j - 1], ini[i][j] = bt[i][j] = ( mp[i][j] == '.' ? 1 : 0 );
}
cin >> s;
s = "=" + s;
FOR( id, 1, k, 1 )
{
if( s[id] == '?' )
{
FOR( i, 1, n, 1 ) svo[i] = emp;
FOR( i, 1, n, 1 )
{
svo[i - 1] = ( svo[i - 1] | bt[i] ) & ini[i - 1];
svo[i + 1] = ( svo[i + 1] | bt[i] ) & ini[i + 1];
}
FOR( i, 1, n, 1 )
{
sv1 = sv2 = bt[i];
sv1 >>= 1; sv2 <<= 1;
bt[i] = ( sv1 | sv2 ) & ini[i];
}
FOR( i, 1, n, 1 ) bt[i] |= svo[i];
}
else change( s[id] );
}
FOR( i, 1, n, 1 ) z += bt[i].count();
cout << z;
}
signed main()
{
// freopen("connect.in", "r", stdin);
// freopen("connect.out", "w", stdout);
respagold
int test = 1;
if( !test ) cin >> test;
while( test -- )
{
solve();
}
}
// solved by KluydQ
