char un[1000010];
int  ko[1000010];
x;y;
main(w,h,n,i){
	scanf("%d%d%d",&h,&w,&n);
	for(i=0;i<n;++i){
		scanf(" %c%d",&un[i],&ko[i]);
	}
	for(i=n;--i>=0;){
		if(un[i]=='R'){
			if(y==ko[i]) x=(x+w-1)%w;
		}else{
			if(x==ko[i]) y=(y+h-1)%h;
		}
	}
	printf(x+y&1?"black":"white");
	return 0;
}