// #pragma GCC optimize ("Ofast")
// #pragma GCC optimize ("unroll-loops")
// #pragma GCC target ("avx,avx2,fma")
#include <bits/stdc++.h>

using std::cin, std::cout, std::cerr;
using ll = long long;

int main() {
    std::ios::sync_with_stdio(false);
    int n, m; cin >> n >> m;
    int x = 0, y = 0;
    int q; cin >> q;
    std::function<void(void)> solve = [&]() {
        if(q == 0) return;
        char c; int k; cin >> c >> k;
        q --;
        solve();

        if(c == 'R' && k == x) {
            y --;
            if(y == -1) y = m - 1;
        }
        if(c == 'C' && k == y) {
            x --;
            if(x == -1) x = n - 1;
        }
    };
    solve();

    if((x + y) & 1)
        cout << "black\n";
    else
        cout << "white\n";
}