#include<stdio.h>
int n,m,c[1024],l,s1[1024],s2[1024],r;
void citire()
{
	int i;
	scanf("%d",&l);
	for(i=0;i<l;i++)
		scanf("%d",&s1[i]);
	for(i=0;i<l;i++)
		scanf("%d",&s2[i]);
	scanf("%d",&r);
}
int main()
{
	freopen("balanta.in","r",stdin);
	freopen("balanta.out","w",stdout);
	scanf("%d%d",&n,&m);
	for(int i=0;i<m;i++)
	citire();
	printf("%d\n",0);
	return 0;
}