#include <bits/stdc++.h>

using namespace std;

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

template<typename A, typename B> inline bool chmax(A &a, B b) { if (a<b) { a=b; return 1; } return 0; }
template<typename A, typename B> inline bool chmin(A &a, B b) { if (a>b) { a=b; return 1; } return 0; }

typedef unsigned long long ull;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<int, pii> P;

const ll INF = 1ll<<29;
const ll MOD = 1000000007;
const double EPS  = 1e-10;

int h, w, n;
char s[1123456];
int k[1123456];

int main() {
	cin >> h >> w >> n;
	REP(i, n) scanf(" %c %d", 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) x = (x - 1 + w) % w;
		}
		else {
			if (k[i] == x) y = (y - 1 + h) % h;
		}
	}
	
	puts( (x + y) % 2 == 0 ? "white" : "black");
	
	return 0;
}