#include <bits/stdc++.h>
using namespace std;
int dp[100010];
int main() {
  int val90, val1440, n;
  cin >> n;
  dp[0] = 0;
  unsigned int ar[n + 10];
  for (int i = 1; i <= n; i++) {
    cin >> ar[i];
  }
  val1440 = val90 = 1;
  for (int i = 1; i <= n; i++) {
    while (ar[i] - ar[val1440] >= 1440) {
      val1440++;
    }
    while (ar[i] - ar[val90] >= 90) {
      val90++;
    }
    dp[i] = min(dp[i - 1] + 20, dp[val90 - 1] + 50);
    dp[i] = min(dp[i], dp[val1440 - 1] + 120);
    int ans = dp[i] - dp[i - 1];
    printf("%d\n", ans);
  }
  return 0;
}
