Average score of seeking input

= LIS [] 
SUM = 0 
the while True: 
    Content = INPUT ( "Please enter the results (Zhang format _44), type Q to exit:") 
    IF Content == "Q": 
        BREAK 
    the else: 
         LIS .append (Content) 
I in LIS for: 
    S = i.split ( "_") 
    SUM = SUM + int (S [. 1]) 
Print (SUM / len (LIS))