include[HTML_REMOVED]
using namespace std;
int main()
{
int n,i,k=1,j=1;
string s;
stack[HTML_REMOVED]s1;
cin>>n;
getline(cin, s);
s1.push(s);
for(i=0;i[HTML_REMOVED]j)j=k;
k=1;
}
s1.push(s);
}
cout<<j;
return 0;
}