#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=int(a);i<int(b);++i)
using namespace std;
typedef long long ll;
int INF = (1LL << 30) - 1;
int MOD = 1e9+7;
main(){
    ll H,W,N;
    cin >> H >> W >> N;
    vector<int> V(N);
    vector<char> C(N);
    rep(i,0,N){
        cin >> C[i] >> V[i];
    }
    int y = 0,x = 0;
    for(int i = N-1;i >= 0;i--){
        if(V[i] == x || V[i] == y){
            if(C[i] == 'R')x = (x + W - 1) % W;
            else           y = (y + H - 1) % H;
        }
    }
    //cout << x << " " << y << endl;
    if((x + y) & 1)cout << "black" << endl;
    else           cout << "white" << endl;
    
}