#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef complex<double> P;
typedef pair<int,int> pii;
#define REP(i,n) for(ll i=0;i<n;++i)
#define REPR(i,n) for(ll i=1;i<n;++i)
#define FOR(i,a,b) for(ll i=a;i<b;++i)

#define DEBUG(x) cout<<#x<<": "<<x<<endl
#define DEBUG_VEC(v) cout<<#v<<":";REP(i,v.size())cout<<" "<<v[i];cout<<endl
#define ALL(a) (a).begin(),(a).end()

#define MOD (ll)(1e9+7)
#define ADD(a,b) a=((a)+(b))%MOD
#define FIX(a) ((a)%MOD+MOD)%MOD

char c[1000100];
int k[1000100];

int main(){
  int h,w;
  cin>>h>>w;
  int n;
  cin>>n;
  int x=0,y=0;
  REP(i,n){
    cin>>c[n-1-i]>>k[n-1-i];
  }
  REP(i,n){
    if(c[i]=='R' && k[i]==y){
      --x;
      if(x<0)x+=w;
    }else if(c[i]=='C' && k[i]==x){
      --y;
      if(y<0)y+=h;
    }
  }
  if((x+y)%2==1){
    cout<<"black"<<endl;
  }else{
    cout<<"white"<<endl;
  }
  return 0;
}