#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <complex>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <iomanip>
#include <assert.h>
#include <array>
#include <cstdio>
#include <cstring>
#include <random>
#include <functional>
#include <numeric>
#include <bitset>

using namespace std;

#define REP(i,a,b) for(int i=a;i<(int)b;i++)
#define rep(i,n) REP(i,0,n)
#define all(c) (c).begin(), (c).end()
#define zero(a) memset(a, 0, sizeof a)
#define minus(a) memset(a, -1, sizeof a)
template<class T1, class T2> inline bool minimize(T1 &a, T2 b) { return b < a && (a = b, 1); }
template<class T1, class T2> inline bool maximize(T1 &a, T2 b) { return a < b && (a = b, 1); }

typedef long long ll;
int const inf = 1<<29;

int main() {

  int H, W; cin >> H >> W;
  int N; cin >> N;
  vector<pair<bool, int>> v;
  rep(i, N) {
    char c; int k; cin >> c >> k;
    v.emplace_back(c == 'R', k);
  }

  int sx = 0, sy = 0;

  rep(i, N) {
    bool op = v[N-i-1].first;
    int num = v[N-i-1].second;
    if(op) {
      if(num == sy) {
        sx --; if(sx < 0) sx = W-1;
      }
    } else {
      if(num == sx) {
        sy --; if(sy < 0) sy = H-1;
      }
    }
  }

  vector<vector<bool>> w(H, vector<bool>(W));
  w[0][0] = 1; REP(i, 1, W) w[0][i] = !w[0][i-1];
  REP(i, 1, H) rep(j, W) {
    w[i][j] = !w[i-1][j];
  }

  cout << (w[sy][sx] ? "white" : "black") << endl;

  return 0;
}