#include <iostream>
#include <vector>
using namespace std;
typedef struct hoge{
    char c;
    int n;
    hoge(){
        c='a';
        n=0;
    }
    hoge(char c,int n):c(c),n(n){};
}hoge;
int main(void){
    int n,h,w;
    cin >> h >> w;
    cin >> n;
    vector<hoge> ho;
    
    for(int i=0;i<n;i++){
        int nn;
        char c;
        cin >> c >> nn;
        ho.push_back(hoge(c,nn));
        //cin >> ho[i].c >> ho[i].n;
    }
    int x=0,y=0;
    while(!ho.empty()){
        if(ho.back().c=='R'&&x==ho.back().n){
            y=(y+w-1)%w;
        }else if(ho.back().c=='C'&&y==ho.back().n){
            x=(x+h-1)%h;
        }
        ho.pop_back();
    }
    cout <<((x+y)%2  ? "black" : "white" )<<endl;
    return 0;
}