#include <bits/stdc++.h>

using namespace std;

using ll = long long;

char s[1000005];
int k[1000005];

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int H, W, n;
    cin >> H >> W >> n;
    for (int i = 0; i < n; i++) {
        cin >> s[i] >> k[i];
    }
    int h = 0, w = 0;
    for (int i = n - 1; i >= 0; i--) {
        if (s[i] == 'R') {
            if (h == k[i]) w = (w + W - 1) % W;
        } else {
            if (w == k[i]) h = (h + H - 1) % H;
        }
    }
    cout << ((w + h) % 2 == 0 ? "white" : "black") << endl;
    return 0;
}