include[HTML_REMOVED]

include[HTML_REMOVED]

//我了个扫杠想得太复杂了
using namespace std;
vector[HTML_REMOVED]arr;
int main()
{
int sum=0;
int n;
cin>>n;
while(cin>>n)
{
arr.push_back(n);
if(cin.get()==’\n’)
break;
}
for(int i=0;i[HTML_REMOVED]90&&arr[i]<180)
sum+=1;

}
cout<<sum;
return 0;

}