#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
//#include<cctype>
#include<climits>
#include<iostream>
#include<string>
#include<vector>
#include<map>
//#include<list>
#include<queue>
#include<deque>
#include<algorithm>
//#include<numeric>
#include<utility>
//#include<memory>
#include<functional>
#include<cassert>
#include<set>
#include<stack>
#include<random>

const int dx[] = {1, 0, -1, 0};
const int dy[] = {0, -1, 0, 1};
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef pair<int, int> pii;

string field[55];

int calc(int w, int b) {
    if (w > b) swap(w, b);
    return w*10 + b-w;
}

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int N, M;
    cin >> N >> M;
    for (int i = 0; i < N; i++) {
        cin >> field[i];
    }
    int ans = 0;
    while (1) {
        bool finish = true;
        for (int i = 0; i < N; i++) for (int j = 0; j < M; j++) {
            if (field[i][j] != '.') {
                int degree = 0;
                for (int k = 0; k < 4; k++) {
                    int y = i+dy[k], x = j+dx[k];
                    if (y < 0 || y >= N || x < 0 || x >= M) continue;
                    if (field[y][x] != '.') degree++;
                }
                if (degree == 1) {
                    finish = false;
                    for (int k = 0; k < 4; k++) {
                        int y = i+dy[k], x = j+dx[k];
                        if (y < 0 || y >= N || x < 0 || x >= M) continue;
                        if (field[y][x] != '.') {
                            ans += 100;
                            field[y][x] = '.';
                            field[i][j] = '.';
                        }
                    }
                }
            }
        }
        if (finish) break;
    }
    int W = 0, B = 0, w = 0, b = 0;
    for (int i = 0; i < N; i++) for (int j = 0; j < M; j++) {
        if (field[i][j] != '.') {
            int degree = 0;
            for (int k = 0; k < 4; k++) {
                int y = i+dy[k], x = j+dx[k];
                if (y < 0 || y >= N || x < 0 || x >= M) continue;
                if (field[y][x] != '.') degree++;
            }
            if (!degree) {
                if (field[i][j] == 'w') W++;
                else B++;
            } else {
                if (field[i][j] == 'w') w++;
                else b++;
            }
        }
    }
    ans += (w+b)/2 * 100;
    int tmp = calc(W, B);
    if ((w+b)%2 == 1 && w > 0) tmp = max(tmp, calc(W+1, B));
    if ((w+b)%2 == 1 && b > 0) tmp = max(tmp, calc(W, B+1));
    ans += tmp;
    cout << ans << endl;
    return 0;
}