#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main(){
    int h, w, n;
    cin >> h >> w >> n;
    vector<pair<char,int>> a(n);
    for(int i = 0; i < n; i++)cin >> a[i].first >> a[i].second;
    reverse(a.begin(), a.end());
    int y = 0, x = 0;
    for(int i = 0; i < n; i++){
        if(a[i].first == 'R'){
            if(y == a[i].second){
                x--;
                if(x < 0)x += w;
            }
        }else{
            if(x == a[i].second){
                y--;
                if(y < 0)y += h;
            }
        }
    }
    cout << ((y ^ x) & 1 ? "black" : "white") << '\n';
}