price movement of 2 candles in raport with ATR

I get this error on my code

Mismatched input 'alert' expecting 'end of line without line continuation'.

I want to make an alert when the price from 2 candles moves more than 1 ATR

my_atr = at(14)

if (close - open[1] > my_atr )
  alert("bull case",  alert.freq_once_per_bar_close)
else
 alert("bear case",  alert.freq_once_per_bar_close)