#include <iostream>
#include <vector>

using namespace std;

int dx[4]{-1,0,1,0};
int dy[4]{0,1,0,-1};
int main() {
  int r, c;
  cin >> r >> c;
  int sx, sy, ex, ey;
  cin >> sx >> sy >> ex >> ey;
  sx--; sy--; ex--; ey--;
  vector<string> g(r);
  for(auto& x: g) cin >> x;
  int x = sx, y = sy, dir = 1;
  for(int qq = 0; qq < 5*r*c; qq++) {
    if(x == ex && y == ey) return void(cout << "1\n"), 0;
    int pdir = (dir+3)%4;
    int nx = x + dx[pdir];
    int ny = y + dy[pdir];
    if(nx >= 0 && nx < r && ny >= 0 && ny < c && g[nx][ny] == '0') {
      x = nx;
      y = ny;
      dir = pdir;
      continue;
    }
    nx = x + dx[dir];
    ny = y + dy[dir];
    if(nx >= 0 && nx < r && ny >= 0 && ny < c && g[nx][ny] == '0') {
      x = nx;
      y = ny;
      continue;
    }
    dir = (dir+1)%4;
  }
  cout << "0\n";
}