#include<stdio.h>
#include<stdlib.h>

void run(void){
  int h,w;
  scanf("%d%d",&h,&w);
  int n;
  scanf("%d",&n);
  char *s=(char *)malloc(sizeof(char)*(n+1));
  int *k=(int *)malloc(sizeof(int)*n);
  int i;
  for(i=0;i<n;i++){
    scanf("%s%d",s+i,k+i);
  }
  int x=0;
  int y=0;
  for(i=n-1;i>=0;i--){
    if(s[i]=='R'){
      if(k[i]==y){
        x=(x-1>=0?x-1:x-1+w);
      }
    } else {
      if(k[i]==x){
        y=(y-1>=0?y-1:y-1+h);
      }
    }
  }
  if((x+y)%2==0){
    printf("white\n");
  } else {
    printf("black\n");
  }
  return;
}

int main(void){
  run();
  return 0;
}