#include<bits/stdc++.h>
using namespace std;

#define int long long
typedef pair<int,int>pint;
typedef vector<int>vint;
typedef vector<pint>vpint;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define all(v) (v).begin(),(v).end()
#define rep(i,n) for(int i=0;i<(n);i++)
#define reps(i,f,n) for(int i=(f);i<(n);i++)
#define each(it,v) for(__typeof((v).begin()) it=(v).begin();it!=(v).end();it++)
template<class T,class U>inline void chmin(T &t,U f){if(t>f)t=f;}
template<class T,class U>inline void chmax(T &t,U f){if(t<f)t=f;}


int H,W;
int N;
char S[1111111];int K[1111111];

signed main(){
    scanf("%lld%lld",&H,&W);
    scanf("%lld",&N);
    rep(i,N)scanf(" %c%lld",&S[i],&K[i]);

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

    cout<<(((x+y)%2)?"black":"white")<<endl;
    return 0;
}