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

const string msg[] = { "white", "black" };

signed main(){
  int H, W; cin >> H >> W;
  int N; cin >> N;
  vector< pair< string, int > > opx( N );
  for( int i = 0; i < N; ++i )
    cin >> opx[ i ].first >> opx[ i ].second;
  int x = 0, y = 0;
  for( int i = N - 1; i >= 0; --i ){
    string op = opx[ i ].first;
    int v = opx[ i ].second;
    if( op[ 0 ] == 'R' ){
      if( x != v ) continue;
      x = ( x - 1 + W ) % W;
    } else{
      if( y != v ) continue;
      y = ( y - 1 + H ) % H;
    }
  }
  cout << msg[ ( ( x & 1 ) + ( y & 1 ) ) & 1 ] << endl;
  return 0;
}