#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main(){
    ll n,m,i,j,com;
    while(cin>>n>>m>>com){
        if(n+m+com==0) break;
        char mat[n][m];
        int vis[n][m];
        for(i=0;i<n;i++){
            for(j=0;j<m;j++){
                scanf(" %c",&mat[i][j]);
                vis[i][j]=0;
            }
        }
        com--;
        ll pas=0;
        pair <int,int> pos;
        pos.first=0;
        pos.second=com;
        ll ans,loop,tam_loop;
        while(true){
            pas++;
            //cout<<pos.first<<" "<<pos.second<<endl;
            if(mat[pos.first][pos.second]=='N'){
                pos.first--;
            }else if(mat[pos.first][pos.second]=='S'){
                pos.first++;
            }else if(mat[pos.first][pos.second]=='E'){
                pos.second++;
            }else if(mat[pos.first][pos.second]=='W'){
                pos.second--;
            }
            if(pos.first<0 || pos.first==n || pos.second<0 || pos.second == m){
                ans=1;
                break;
            }else if(vis[pos.first][pos.second]>0){
                //cout<<vis[pos.first][pos.second]<<endl;
                ans=0;
                loop = vis[pos.first][pos.second];
                tam_loop = pas-loop;
                break;
            }else{
                vis[pos.first][pos.second]=pas;
            }
        }
        if(ans){
            cout<<pas<<" step(s) to exit"<<endl;
        }else{
            cout<<loop<<" step(s) before a loop of "<<tam_loop<<" step(s)"<<endl;
        }
    }
}