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#include <bits/stdc++.h>
using namespace std;
ifstream in("balanta.in");
ofstream out("balanta.out");
int u[1026],g[1026],v[1026];
int main()
{ int n,k,i,j,m,a,elg,elu;
in>>n>>m;
elg=elu=n;
for(int j=1;j<=m;j++)
{ memset(v,0,sizeof v);
in>>k;
for(int i=1;i<=k;i++)
{
in>>a;
v[a]=1;
}
for(int i=1;i<=k;i++)
{
in>>a;
v[a]=2;
}
int caz;
in>>caz;
if(caz==0)
{
for(int i=1;i<=n;i++)
{
if(v[i])
g[i]=1;
u[i]=1;
}
}
if(caz==1)
for(int i=1;i<=n;i++)
{
if(v[i]!=1)
g[i]=1;
if(v[i]!=2)
u[i]=1;
}
if(caz==2)
for(int i=1;i<=n;i++)
{
if(v[i]!=1)
u[i]=1;
if(v[i]!=2)
g[i]=1;
}
}
int ind,nr=0;
for(int i=1;i<=n;i++)
{
if(g[i]==0||u[i]==0){++nr;ind=i;}
}
if(nr==2)out<<0;
else out<<ind;
return 0;
}