import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 * Created by camp on 11/13/2014.
 */
public class TaskD {

    public static final int LEFT = 0;
    public static final int UP = 1;
    public static final int RIGHT = 2;
    public static final int DOWN = 3;

    public static int h;
    public static int w;
    public static int direction = RIGHT;

    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String[] input = reader.readLine().split(" ");
        h = Integer.parseInt(input[0]);
        w = Integer.parseInt(input[1]);
        char[][] matrix = new char[h][w];
        for (int i = 0; i < h; i++) {
            matrix[i] = reader.readLine().toCharArray();
        }

        int[] memory = new int[26];
        int current = 0;

        int n = Integer.parseInt(reader.readLine());
        int last = 0;

        int x = 0;
        int y = 0;
        for (int i = 0; i < 1000000; i++) {
            char command = matrix[x][y];
            switch (command) {
                case '#':
                    System.exit(0);
                    break;
                case '.':
                    break;
                case '?':
                    if (n > 0) {
                        current = Integer.parseInt(reader.readLine());
                        checkNumber(current);
                        n--;
                        last = current;
                    } else {
                        current = last;
                    }
                    break;
                case '!':
                    System.out.println(current);
                    current = 0;
                    break;
                case '+':
                    current++;
                    checkNumber(current);
                    break;
                case '-':
                    current--;
                    checkNumber(current);
                    break;
                case '@':
                    if (current == 0) {
                        changeDirection(false);
                    } else {
                        changeDirection(true);
                    }
                    break;
                case '^':
                    direction = UP;
                    break;
                case '>':
                    direction = RIGHT;
                    break;
                case 'v':
                    direction = DOWN;
                    break;
                case '<':
                    direction = LEFT;
                    break;
                default:
                    int temp = memory[command - 'A'];
                    memory[command - 'A'] = current;
                    current = temp;
                    break;
            }

            x = nextX(x);
            y = nextY(y);


            if (!isCellValid(x, y)) {
                System.out.println("RUNTIME ERROR");
                System.exit(0);
            }
        }

        System.out.println("TIME LIMIT EXCEEDED");
    }

    public static void changeDirection(boolean clock) {
        if (clock) {
            direction++;
            if (direction == 4) {
                direction = 0;
            }
        } else {
            direction--;
            if (direction == -1) {
                direction = 3;
            }
        }
    }

    public static boolean isCellValid(int x, int y) {
        return (0 <= x && 0 <= y) && (x < h && y < w);
    }

    public static void checkNumber(int num) {
        if (!isNumberValid(num)) {
            System.out.println("OVERFLOW ERROR");
            System.exit(0);
        }
    }

    public static boolean isNumberValid(int num) {
        return (Math.abs(num) <= 100000);
    }

    public static int nextX(int x) {
        if (direction == UP) return x - 1;
        if (direction == DOWN) return x + 1;
        return x;
    }

    public static int nextY(int y) {
        if (direction == LEFT) return y - 1;
        if (direction == RIGHT) return y + 1;
        return y;
    }

}

/*
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>..>@A
-...A!
^A.+<#
2
2
3


2 4
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##^<
1
0


1 4
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1
1
 */