#include 
#include 
#include 
#include 
#include 
using namespace std;
typedef long long ll;
const int maxn = 1e5 + 10;
const int INF = 2e9 + 10;
const ll inf = 1e18 + 10;
int n, m;
char mat[1001][1001];
int di[] = {-1, 1, 0, 0};
int dj[] = {0, 0, -1, 1};
int dist[1001][1001];
int bfs(int si, int sj) {
    vector> visited(n, vector(m, false));
    visited[si][sj] = true;
    queue q;
    q.push(si);
    q.push(sj);
    q.push(0);
    while(!q.empty()) {
        int ti = q.front(); q.pop();
        int tj = q.front(); q.pop();
        int distance = q.front(); q.pop();
        dist[ti][tj] = distance;
        for(int it = 0; it < 4; ++it) {
            int ni = ti + di[it];
            int nj = tj + dj[it];
            if(ni < 0 or nj < 0 or ni >= n or nj >= m) continue;
            if(visited[ni][nj]) continue;
            if(mat[ni][nj] == 'T') continue;
            visited[ni][nj] = true;
            q.push(ni);
            q.push(nj);
            q.push(distance + 1);
        }
         
    }
    return 0;
}
int main() {
    ios_base::sync_with_stdio(false);
//    ifstream cin("in.txt");
    int t;
    cin >> t;
    for(int T = 0; T < t; ++T) {
        cin >> n >> m;
        int si, sj; // starting position
        int ei, ej; // ending position
        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;
                }
            }
        }
        for(int i = 0; i < n; ++i) {
            for(int j = 0; j < m; ++j) {
                dist[i][j] = INF;
            }
        }
        bfs(ei, ej);
        int health = 100;
        for(int i = 0; i < n; ++i) {
            for(int j = 0; j < m; ++j) {
                if(mat[i][j] >= '0' and mat[i][j] <= '9') {
                    if(dist[i][j] <= dist[si][sj]) {
                        health -= (mat[i][j] - '0');
                    }
                }
            }
        }
        cout << max(health, 0) << endl;
    }
    return 0;
}