#include 
using namespace std;

int main()
{
   int n, m;
   cin >> n >> m;
   char mat[n][m];
   bool visited[n][m];
   int si, sj, ei, ej;
   for(int i = 0; i < n; i++) {
      for(int j = 0; j < m; j++) {
         cin >> mat[i][j];

         if(mat[i][j] == 'S') {
            si = i;
            sj = j;
         }
         if(mat[i][j] == 'E') {
            ei = i;
            ej = j;
         }
         visited[i][j] = false;
      }
   }

   queue q;
   q.push(si);
   q.push(sj);
   q.push(0);
   visited[si][sj] = true;
   while(!q.empty()) {
      int ci = q.front();
      q.pop();
      int cj = q.front();
      q.pop();
      int cekor = q.front();
      q.pop();

      if(ci == ei and cj == ej) {
         cout << cekor << endl;
         break;
      }

      if(ci + 1 < n and mat[ci + 1][cj] != '#' and !visited[ci + 1][cj]) {
         q.push(ci + 1);
         q.push(cj);
         q.push(cekor + 1);
         visited[ci + 1][cj] = true;
      }
      if(ci - 1 >= 0 and mat[ci - 1][cj] != '#' and !visited[ci - 1][cj]) {
         q.push(ci - 1);
         q.push(cj);
         q.push(cekor + 1);
         visited[ci - 1][cj] = true;
      }
      if(cj + 1 < m and mat[ci][cj + 1] != '#' and !visited[ci][cj + 1]) {
         q.push(ci);
         q.push(cj + 1);
         q.push(cekor + 1);
         visited[ci][cj + 1] = true;
      }
      if(cj - 1 >= 0 and mat[ci][cj - 1] != '#' and !visited[ci][cj - 1]) {
         q.push(ci);
         q.push(cj - 1);
         q.push(cekor + 1);
         visited[ci][cj - 1] = true;
      }


   }


   return 0;
}