#include<stdio.h>
int main()
{
	freopen("matrix.in","r",stdin);
	freopen("matrix.out","w",stdout);
	scanf("%d%d",&m,&n);
	for(i=1;i<=m;++i)
		gets(1+a[i]);
	for(i=1;i<=n;++i)
	{
		gets(s);
		p=strlen(s);
		for(j=0;j<p;++j)
			v[s[j]-'a'+1]=1;
	}
	
	for(i=1;i<=n;++i)
		for(j=1;j<=n;++j)
			st[a[i][j]-'a'+1]=1;
	for(i=1;i<=26;++i)
		c[i]=st[i];
	
	j=n;
	
	i=n;
	while(i<=m)
	{
		while(j<=m)
		{
			for(k=i;k<=n+i-1;++k)
				
		}
	}		
	return 0;
}