# your code goes here
from math import lcm
def UCLN (x,y):
return x*y//lcm(x,y)
a = int(input('a = '))
print (a)
b = int(input('b = '))
print (b)
print ('Ước chung lớn nhất: ',UCLN(a,b))
c = a + b + UCLN(a,b)
print ('c = ',c)
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