#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
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 y = 0;
    int x = 0;
    for(int i=n-1; i>=0; --i){
        if(s[i] == 'R'){
            if(y == k[i])
                x = (x + w - 1) % w;
        }
        else{
            if(x == k[i])
                y = (y + h - 1) % h;
        }
    }

    if((y + x) % 2 == 0)
        cout << "white" << endl;
    else
        cout << "black" << endl;

    return 0;
}