#include <iostream>
using namespace std;
int sub(int v[20], int n)
{
int i, c=0;
for(i=1;i<=n;i++)
if(v[i]>=100 && v[i]<=999)
c++;
return c;
}
int main()
{
int v[20], n, i;
cout<<"n="; cin>>n;
for(i=1;i<=n;i++){
cout<<"v["<<i<<"]="; cin>>v[i];
}
cout<<endl;
cout<<sub(v,n);
return 0;
}