#include<bits/stdc++.h>
#define rep(i,a,...) for(int i = (a)*(strlen(#__VA_ARGS__)!=0);i<(int)(strlen(#__VA_ARGS__)?__VA_ARGS__:(a));++i)
#define per(i,a,...) for(int i = (strlen(#__VA_ARGS__)?__VA_ARGS__:(a))-1;i>=(int)(strlen(#__VA_ARGS__)?(a):0);--i)
#define foreach(i, n) for(auto &i:(n))
#define all(x) (x).begin(), (x).end()
#define bit(x) (1ll << (x))
#define lambda(RES_TYPE, ...) (function<RES_TYPE(__VA_ARGS__)>)[&](__VA_ARGS__) -> RES_TYPE
#define method(FUNC_NAME, RES_TYPE, ...) function<RES_TYPE(__VA_ARGS__)> FUNC_NAME = lambda(RES_TYPE, __VA_ARGS__)
using namespace std;
using ll = long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
//const ll MOD = (ll)1e9+7;
const ll MOD = 998244353;
const int INF = (ll)1e9+7;
const ll INFLL = (ll)1e18;
template<class t>
using vvector = vector<vector<t>>;
template<class t>
using vvvector = vector<vector<vector<t>>>;
template<class t>
using priority_queuer = priority_queue<t, vector<t>, greater<t>>;
template<class t, class u> bool chmax(t &a, u b){if(a<b){a=b;return true;}return false;}
template<class t, class u> bool chmin(t &a, u b){if(a>b){a=b;return true;}return false;}
#ifdef DEBUG
#define debug(x) cout<<"LINE "<<__LINE__<<": "<<#x<<" = "<<x<<endl;
#else
#define debug(x) (void)0
#endif

namespace templates{
  ll modpow(ll x, ll b){
    ll res = 1;
    while(b){
      if(b&1)res = res * x % MOD;
      x = x * x % MOD;
      b>>=1;
    }
    return res;
  }

  ll modinv(ll x){
    return modpow(x, MOD-2);
  }

  bool was_output = false;
  template<class t>
  void output(t a){
    if(was_output)cout << " ";
    cout << a;
    was_output = true;
  }
  void outendl(){
    was_output = false;
    cout << endl;
  }
  ll in(){
    ll res;
    scanf("%lld", &res);
    return res;
  }

  template<class t>
  istream& operator>>(istream&is, vector<t>&x){
    for(auto &i:x)is >> i;
    return is;
  }

  template<class t, class u>
  istream& operator>>(istream&is, pair<t, u>&x){
    is >> x.first >> x.second;
    return is;
  }

  template<class t>
  void in(t&x){
    cin >> x;
  }

  template<class t>
  t in(){
    t res; cin >> res; return res;
  }

  template<class t>
  void out(t x){
    cout << x;
  }

  template<class t>
  vector<t> sorted(vector<t> line,function<bool(t,t)> comp=[](t a,t b){return a<b;}){
    sort(line.begin(),line.end(),comp);
    return line;
  }

  template<class t>
  vector<t> reversed(vector<t> line){
    reverse(line.begin(),line.end());
    return line;
  }
}

using namespace templates;

string func(int w,int h){
    vvector<char> board(h,vector<char>(w));
    vvector<int> color(h,vector<int>(w,0));
    rep(i,h){
        rep(j,w){
            board[i][j] = in<char>();
        }
    }
    method(tocolor,int,char x){
        if(x=='B')return 1;
        if(x=='W')return 2;
        return 0;
    };
    method(func,void,int y,int x,int c){
        if(min(y,x)<0 or y >= h or x >= w)return;
        if(tocolor(board[y][x]) and tocolor(board[y][x]) != c)return;
        if(color[y][x] bitand c)return;
        color[y][x] |= c;
        func(y+1,x,c);
        func(y-1,x,c);
        func(y,x+1,c);
        func(y,x-1,c);
    };

    rep(i,h){
        rep(j,w){
            if(tocolor(board[i][j])){
                func(i,j,tocolor(board[i][j]));
            }
        }
    }
    int black = 0;
    int white = 0;
    rep(i,h){
        rep(j,w){
            if(!tocolor(board[i][j])){
                if(color[i][j]==1){
                    ++black;
                }
                if(color[i][j]==2){
                    ++white;
                }
            }
        }
    }
    return to_string(black) + " " + to_string(white);
}

int main(){
    int n,m;
    while(true){
        n = in();
        m = in();
        if(!n)break;
        cout << func(n,m) << endl;
    }
  return 0;
}



Measured memory_bytes: 3600