#include<bits/stdc++.h>
typedef long long ll;
#define pb push_back
#define fr first
#define sc second
#define endl '\n'
using namespace std;
int r,c,m;
set<pair<int,int>>dir[5],alive;
map<char,int>mp={{'N',0},{'S',1},{'E',2},{'W',3},{'?',4}};
string s;
int table[502][502],ori[502][502];
int X[4]={0,0,1,-1},Y[4]={1,-1,0,0};
bool olume_mahkum(pair<int,int>p){
return table[p.fr+1][p.sc]+table[p.fr-1][p.sc]+table[p.fr][p.sc+1]+table[p.fr][p.sc-1]==0;
}
int main(){
ios_base::sync_with_stdio(false);cin.tie(NULL);
cin>>r>>c>>m;
for(int i=1;i<=r;i++){
for(int j=1;j<=c;j++){
char ch;cin>>ch;
ori[i][j]=table[i][j]=(ch=='.');
if(table[i][j]==1)alive.insert({i,j});
}
}
cin>>s;
for(auto[i,j]:alive){
if(table[i-1][j]==1)dir[mp['S']].insert({i,j});
if(table[i+1][j]==1)dir[mp['N']].insert({i,j});
if(table[i][j-1]==1)dir[mp['E']].insert({i,j});
if(table[i][j+1]==1)dir[mp['W']].insert({i,j});
if(!olume_mahkum({i,j}))dir[mp['?']].insert({i,j});
int i2=i,j2=j;
for(int k=0;k<4;k++){
i=i2+(!!(k&1))*2-1;
j=j2+(!!(k&2))*2-1;
if(i<1||i>r||j<1||j>c)continue;
if(table[i][j]==1)continue;
if(!ori[i][j])continue;
if(table[i-1][j]==1)dir[mp['S']].insert({i,j});
if(table[i+1][j]==1)dir[mp['N']].insert({i,j});
if(table[i][j-1]==1)dir[mp['E']].insert({i,j});
if(table[i][j+1]==1)dir[mp['W']].insert({i,j});
if(!olume_mahkum({i,j}))dir[mp['?']].insert({i,j});
}
}
for(int l=0;l<m;l++){
for(auto[i,j]:alive){
table[i][j]=0;
}
swap(alive,dir[mp[s[l]]]);
for(auto&x:dir){
x.clear();
}
for(auto[i,j]:alive){
table[i][j]=1;
}
for(auto[i,j]:alive){
if(table[i-1][j]==1)dir[mp['S']].insert({i,j});
if(table[i+1][j]==1)dir[mp['N']].insert({i,j});
if(table[i][j-1]==1)dir[mp['E']].insert({i,j});
if(table[i][j+1]==1)dir[mp['W']].insert({i,j});
if(!olume_mahkum({i,j}))dir[mp['?']].insert({i,j});
int i2=i,j2=j;
for(int k=0;k<4;k++){
i=i2+X[k];
j=j2+Y[k];
if(i<1||i>r||j<1||j>c)continue;
if(table[i][j]==1)continue;
if(!ori[i][j])continue;
if(table[i-1][j]==1)dir[mp['S']].insert({i,j});
if(table[i+1][j]==1)dir[mp['N']].insert({i,j});
if(table[i][j-1]==1)dir[mp['E']].insert({i,j});
if(table[i][j+1]==1)dir[mp['W']].insert({i,j});
if(!olume_mahkum({i,j}))dir[mp['?']].insert({i,j});
}
}
}
cout<<alive.size()<<endl;
}
