#include <bits/stdc++.h> 
using namespace std;
int main() {
    int H, W, N;
    cin >> H >> W >> N;
    vector<char> s(N);
    vector<int> k(N);
    for (int i = 0; i < N; i++) {
        cin >> s[i] >> k[i];
    }

    int r = 0, c = 0;
    for (int i = N - 1; i > -1; i--) {
        if (s[i] == 'R') {
            if (k[i] == r) {
                c = (c + W - 1) % W;
            }
        } else {
            if (k[i] == c) {
                r = (r + H - 1) % H;
            }
        }
    }

    if (c % 2 == r % 2) cout << "white" << endl;
    else cout << "black" << endl;
    
    return 0;
}