The operation of the traffic light for pedestrians is programmed as follows: at the beginning of each hour, a green signal is on for three minutes, then red for two minutes, green again for three minutes, etc. Given a real number t, which means the time in minutes, elapsed since the beginning of the next hour. Determine what color signal is on for pedestrians at this moment. Display the message (without quotes) "green" for green and "red" for red.

def traffic_light_color(t):
  if t % 5 < 3:
    return 'green'
  else:
    return 'red'
    
    
traffic_light_color(5)