#include <iostream>
#include <algorithm>
#include <vector>
#include <cstdio>
#include <cmath>
#include <stack>

using namespace std;
typedef unsigned char byte;
typedef long long int LLint;
typedef unsigned long long int uLLint;

class Twin{
    public:
    int c,k;
    Twin(int a,int b):c(a),k(b){}
};

int main(){
    int h,w,n,k;
    char c;
    int i;
    int x,y;
    stack<Twin> stk;
    
    cin>>h>>w>>n;
    
    for (i=0;i<n;i++){
        cin>>c>>k;
        stk.push(Twin((int)c,k));
    }
    x=y=0;
    for (;!stk.empty();stk.pop()){
        Twin &t=stk.top();
        if (t.c=='R'){
            if (y==t.k) x--;
        }else{
            if (x==t.k) y--;
        }
        if (x<0) x=w-1;
        if (y<0) y=h-1;
    }
    
    cout<<( ((x&1)^(y&1))?"black":"white" )<<endl;
    return 0;
}