#include<cstdio>
#define rep(i,a) for(int i=0;i<(a);++i)
#define repd(i,a) for(int i=(a);i>=0;--i)

const int MAX_H = 10000, MAX_W = 10000, MAX_N = 1000000;

int H, W;
int N;
char S[MAX_N][2];
int K[MAX_N];

int main()
{
	scanf( "%d%d%d", &H, &W, &N );

	rep( i, N )
		scanf( "%s%d", S+i, K+i );

	int x = 0, y = 0;
	repd( i, N-1 )
	{
		if( *S[i] == 'R' && K[i] == x )
			y = (y-1+W) % W;

		if( *S[i] == 'C' && K[i] == y )
			x = (x-1+H) % H;
	}

	puts( (x+y)&1 ? "black" : "white" );

	return 0;
}