int main()
{
int N, a, k = 0;
cin >> N;
for (int i = 0;i != N;i++)
cin >> a;
if (a > 9 && a < 100 || a > -9 && a < -100)
cout << a << endl;
}
if (a > 99 && a < 1000 || a > -99 && a < -1000)
k++;
cout << k << endl;
return 0;