DOMACI

1.
   a)
	a=int(input())
	b=int(input())
	print("na pocetku "a,b)
	c=a
	a=b
	b=c
	print("posle zamene "a,b)

  b)

	a=int(input())
	b=int(input())
	print("na pocetku "a,b)	
	a=a+b
	b=a-b
	a=a-b
	print("posle zamene "a,b)