// @author godmar
import java.util.*;

public class CarlsMazeGodmar
{
    static int r, c, ex, ey;
    static char [][]b;
    record Pose(int x, int y, int dx, int dy) { 
        boolean inField() { return 0 <= x && x < r && 0 <= y && y < c; }
        boolean isEmpty() { return b[x][y] == '0'; }
        Pose turnLeft()   { return new Pose(x, y, -dy, dx); }
        Pose turnRight()  { return new Pose(x, y, dy, -dx); }
        Pose moveForward() { return new Pose(x + dx, y + dy, dx, dy); }
        boolean canMoveForward() { 
            var p = new Pose(x + dx, y + dy, dx, dy);
            return p.inField() && p.isEmpty(); 
        }
        boolean isHome() { return x == ex && y == ey; }
    }
    public static void main(String []av) {
        var sc = new Scanner(System.in);
        r = sc.nextInt();
        c = sc.nextInt();
        var carl = new Pose(sc.nextInt()-1, sc.nextInt()-1, 0, 1);
        ex = sc.nextInt() - 1;
        ey = sc.nextInt() - 1;
        b = new char[r][];
        for (int i = 0; i < r; i++)
            b[i] = sc.next().toCharArray();
        var seen = new HashSet<Pose>();
        seen.add(carl);

        while (!carl.isHome()) { // While Carl is not yet in the destination square
            // If Carl can turn left by 90 degrees and face an empty square, 
            // turn left 90 degrees and then move forward by one square.
            if (carl.turnLeft().canMoveForward()) {
                carl = carl.turnLeft().moveForward();
            } else if (carl.canMoveForward()) { // Otherwise, if Carl can move forward by
                                                // one square, move forward by one square.
                carl = carl.moveForward();
            } else {                            // Otherwise, turn right 90 degrees.
                carl = carl.turnRight();
            }
            if (seen.contains(carl)) {
                System.out.println("0");
                return;
            }
            seen.add(carl);
        }
        System.out.println("1");
    }
}