#include <bits/stdc++.h>
using namespace std;
long long a[100005], c[100005];
int main() {
  long long n;
  cin >> n;
  for (long long i = 1; i <= n; i++) {
    cin >> a[i];
  }
  for (int i = 1; i <= n; i++) {
    c[i] = c[i - 1] + 20;
    long long x = upper_bound(a + 1, a + 1 + n, a[i] - 90) - a;
    c[i] = min(c[i], c[x - 1] + 50);
    x = upper_bound(a + 1, a + 1 + n, a[i] - 1440) - a;
    c[i] = min(c[i], c[x - 1] + 120);
  }
  for (int i = 1; i <= n; i++) {
    cout << c[i] - c[i - 1] << endl;
  }
}
