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#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
ifstream fin("aprindere.in");
ofstream fout("aprindere.out");
int n,i,j,id,m,x,nr,rez;
bool st[1005];
vector<int> v[1005];
int main() {
fin>>n>>m;
for(i=0;i<n;i++)
fin>>st[i];
for(i=1;i<=m;i++)
{
fin>>id>>nr;
v[id].push_back(nr);
fin>>nr;
for(j=1;j<=nr;j++)
{
fin>>x;
v[id].push_back(x);
}
}
bool este=1;
rez=0;
for(i=0;i<n&&este==1;i++)
{
if(st[i]==0)
{
if(v[i].size()==0) este=0;
else
{
rez+=v[i].front();
for(j=1;j<v[i].size();j++)
{
if(st[v[i][j]]==1) st[v[i][j]]=0;
else st[v[i][j]]=1;
}
}
}
}
fout<<rez<<"\n";
}