183919
He extracted the 77th root of a 148-digit number in 18 seconds , while it took about 10 minutes to program the related operation for computer .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None