#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for(ll i = 0; i < (ll)(n); i++)
#define rep2(i, a, n) for(ll i = a; i < (ll)(n); i++)
#define memi cout << endl
#define kono(n) cout << fixed << setprecision(n)
#define all(c) (c).begin(), (c).end()
#define pb push_back
#define hina cout << ' '
#define in(n) cin >> n
#define in2(n, m) cin >> n >> m
#define in3(n, m, l) cin >> n >> m >> l
#define out(n) cout << n
const ll mei = (ll)1e9 + 7;

int main(){
  ll a = b = c = d = e = f = g = h = k = n = m = 0;
  in(n);
  rep(i, n){
    in(m);
    if(m < 400)
      a = 1;
    else if(m < 800)
      b = 1;
    else if(m < 1200)
      c = 1;
    else if(m < 1600)
      d = 1;
    else if(m < 2000)
      e = 1;
    else if(m < 2400)
      f = 1;
    else if(m < 2800)
      g = 1;
    else if(m < 3200)
      h = 1;
    else
      k = 1;
  }
  if(k == 1)
    out(8);
  else
    out(a + b + c + d + e + f + g + h);
  memi;
}