/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package karel;

import java.util.*;

/**
 *
 * @author kajanek6
 */
class way {

    int id;
    int dx;
    int dy;
    way right;
    way left;

    way(int dx, int dy, int id) {
        this.dx = dx;
        this.dy = dy;
        this.id=id;
    }
}

public class Karel {

    /**
     * @param args the command line arguments
     */
    int x;
    int y;
    int W;
    int H;
    int L;
    char[][] M = new char[100][100];
    way CurW;
    

    int runStr(String in, int[][][] used) {
        int i = 0;

        if (used[x][y][CurW.id] == 0) {
            used[x][y][CurW.id] = 1;
            while (i < in.length()) {
                switch (in.charAt(i)) {
                    case 'L':
                        CurW = CurW.left;
                        break;
                    case 'R':
                        CurW = CurW.right;
                        break;
                    case 'S': {
                        if ((x + CurW.dx >= 0) && (x + CurW.dx < W) && (y + CurW.dy >= 0) && (y + CurW.dy < H)) {
                            if (M[x + CurW.dx][y + CurW.dy] != 'X') {
                                x += CurW.dx;
                                y += CurW.dy;
                            }
                        }
                    }
                    break;
                        
                }
                i++;
                if(M[x][y]=='E') return 2;
            }
        } else {
            return 0;
        }
        return 1;
    }

    public static void main(String[] args) {
        Karel kar = new Karel();
        int[][][] used = new int[100][100][5];
        way wayT = new way(-1, 0, 1);
        way wayR = new way(0, 1, 2);
        way wayB = new way(1, 0, 3);
        way wayL = new way(0, -1, 4);
        wayT.left = wayL;
        wayL.left = wayB;
        wayB.left = wayR;
        wayR.left = wayT;
        wayT.right = wayR;
        wayL.right = wayT;
        wayB.right = wayL;
        wayR.right = wayB;


        Scanner sc = new Scanner(System.in);
        
        while (sc.hasNext())
        {
        kar = new Karel();
        used = new int[100][100][5];
        kar.H = sc.nextInt();
        kar.W = sc.nextInt();
        String c;
        for (int i = 0; i < kar.H; i++) {
            c = sc.next();
            for (int j = 0; j < kar.W; j++) {
                kar.M[i][j] = c.charAt(j);
            }
        }
        kar.L = sc.nextInt();
        c = sc.next();
        int k;
        int count = 1;
        for (int i = 0; i < kar.H; i++) {
            for (int j = 0; j < kar.W; j++) {
                if (kar.M[i][j] == '.') {
                    used = new int[100][100][5];
                    kar.CurW=wayT;
                    kar.x = i;
                    kar.y = j;
                    while((k=kar.runStr(c, used))==1)
                    {
                    }
                    if(k==2) count++;
                }
            }
        }
        if (count==kar.W*kar.H)System.out.println("OK");
        else System.out.println(count);
        }



    }
}