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#include<fstream>
using namespace std;
ifstream fi("balanta.in");
ofstream fo("balanta.out");
int n,m,i,j,nr,A1[1025],A2[1025],rez,r;
bool V[1025];
int main()
{
fi>>n>>m;
for(i=1; i<=n; i++)
{
fi>>nr;
for(j=1; j<=nr; j++)
fi>>A1[j];
for(j=1; j<=nr; j++)
fi>>A2[j];
fi>>r;
if(r==0)
{
for(j=1; j<=nr; j++)
V[A1[j]]=V[A2[j]]=0;
}
if(r==1)
{
for(j=1; j<=nr; j++)
{
V[A1[j]]=1;
V[A2[j]]=0;
}
}
if(r==2)
{
for(j=1; j<=nr; j++)
{
V[A1[j]]=0;
V[A2[j]]=1;
}
}
}
rez=-1;
for(i=1; i<=n; i++)
{
if(V[i]==1)
{
if(rez!=-1)
{
rez=0;
break;
}
rez=i;
}
}
fo<<rez<<"\n";
fi.close();
fo.close();
return 0;
}