Write a program which computes the greatest common divisor (GCD) and the least common multiple (LCM) of given a and b.
import sys 
for e in sys.stdin:
    a, b = map(int, e.split())
    p = a * b
    while b:
        a, b = b, a%b
        pass
    print (str(a)+' '+str(p/a))

import sys 
for e in sys.stdin:
    a, b = map(int, e.split())
    p = a * b
    while b:
        a, b = b, a%b
        pass
    print (a,p//a)
