#include<bits/stdc++.h>
using namespace std;
ifstream in("coins.in");
ofstream out("coins.out");
int v[23],ct,n,rezultat,total;
int main()
{in>>n;
for(int i=1;i<=n;i++)
{ct=0,total=0;
for(int j=1;j<=22;j++)
{in>>v[i];
if(v[i])ct++,total+=j;

}
if(ct%2)
{if(ct%4==3&&!(total%2))rezultat+=ct;
if(ct%4==1&&total%2)rezultat+=ct;
}
else
{if(ct%4==2&&total%2)rezultat+=ct;
    if(ct%4==0&&!(total%2))rezultat+=ct;
}
}
out<<rezultat;
}