#include <bits/stdc++.h>
using namespace std;
struct INIT{INIT(){ios::sync_with_stdio(false);cin.tie(0);}}init;

int main() {
    int r=0,c=0,R,C,N;
    cin>>R>>C>>N;
    vector<string> S(N);
    vector<int> K(N);

    for(int i = 0; i < N; i++)cin>>S[i]>>K[i];
    reverse(S.begin(),S.end());
    reverse(K.begin(),K.end());
    for(int i = 0; i < N; i++)
        if(S[i]=="R"){
            if(r==K[i])
                c=(c+C-1)%C;
        }
        else{
            if(c==K[i])
                r=(r+R-1)%R;
        }

    if((r+c)&1)cout<<"black"<<endl;
    else cout<<"white"<<endl;
    return 0;
}