#include <bits/stdc++.h>

using namespace std;

#define REP(i,n) for(int i=0; i<(int)(n); i++)
#define FOR(i,b,e) for (int i=(int)(b); i<(int)(e); i++)
#define ALL(x) (x).begin(), (x).end()

const double PI = acos(-1);

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);

  int h, w, n;
  cin >> h >> w >> n;

  vector<char> s(n);
  vector<int> k(n);

  REP (i, n) cin >> s[i] >> k[i];

  int x = 0, y = 0;
  for (int i = n-1; i >= 0; i--) {
    if (s[i] == 'R') {
      if (k[i] == y) {
        if (--x < 0)
          x += w;
      }
    } else {
      if (k[i] == x) {
        if (--y < 0)
          y += h;
      }
    }
  }

  if ((x&1) == (y&1))
    cout << "white" << endl;
  else
    cout << "black" << endl;
  
  return 0;
}