#include <bits/stdc++.h>
using namespace std;
#define REP(i, n) for(int(i)=0;(i)<(n);++(i))

char S[1111111];
int  K[1111111];

int main(){
    int H, W, N;
    cin >> H >> W >> N;

    string s;
    REP(i,N){
        cin >> s >> K[N-i-1];
        S[N-i-1] = s[0];
    }

    int x = 0, y = 0;
    REP(i,N){
        if(S[i] == 'R'){
            if(y == K[i]) x = (x + W - 1) % W;
        } else {
            if(x == K[i]) y = (y + H - 1) % H;
        }
    }

    cout << ((x+y)%2 ? "black" : "white") << endl;
}