import time

class Clicker:
  def __init__(self):
    self.clicks = [0]*3600 # ring buffer of clicks in the last hour
    self.lastClick = int(time.time())


  def _scrub(self):
    now = int(time.time())
    c_idx = now % 3600
    if now - self.lastClick > 3600:
      self.clicks = [0]*3600
    elif now != self.lastClick:
      l_idx = self.LastClick() % 3600
      for i in range(3600):
        t_idx = (l_idx + i) % 3600
        self.clicks[t_idx] = 0
        if t_idx == c_idx:
          break
    return c_idx

  def clickCountLastHour(self):
    # return the sum of ring buffer
    cnt = 0
    self._scrub()
    for c in self.clicks:
      cnt += c
    return cnt

  def click(self):
    c_idx = self._scrub()
    self.clicks[c_idx] += 1