def extract_max(input):
	import re 
	 
	numbers = re.findall('\d+',input) 
	numbers = map(int,numbers) 
	return max(numbers)
def extract_max(input):
    import re
   
    q705r50 = re.findall("d+", input)
    q705r50 = map(int, q705r50)
    return max(q705r50)