//是象棋里的车 符合二分匹配
# include<stdio.h>
# include<algorithm>
# include<string.h>
using namespace std;
int n,m,pp[110][110],map[110],vis[110];
int bfs(int x)
{
	for(int i=1;i<=m;i++)
	{
		if(!vis[i]&&pp[x][i])
		{
			vis[i]=1;
			if(!map[i]||bfs(map[i]))
			{
				map[i]=x;
				return 1;
			}
		}
	}
	return 0;
}
int f()
{
	int a=0;
	memset(map,0,sizeof(map));
	for(int i=1;i<=n;i++)
	{
		memset(vis,0,sizeof(vis));
		if(bfs(i))
			a++;
	}
	return a;
}
int main()
{
	int i,j,k,cot1=0,ans,a,b;
	while(~scanf("%d%d%d",&n,&m,&k))
	{
		memset(pp,0,sizeof(pp));
		for(i=0;i<k;i++)
		{
			scanf("%d%d",&a,&b);
			pp[a][b]=1;
		}
		int cot=f();
		ans=0;
		for(i=1;i<=n;i++)
		{
			for(j=1;j<=m;j++)
			{
				if(pp[i][j])//判断是否为重要点
				{
					pp[i][j]=0;
					if(f()<cot)
						ans++;
					pp[i][j]=1;
					
				}
			}
		}
		printf("Board %d have %d important blanks for %d chessmen.\n",++cot1,ans,cot);
	}
	return 0;
}