func main()
	var n: int :: cui@inputInt()
	var ss: [][]char :: cui@input().split(" ")
	if(^ss = 3)
		do cui@print("\"assert\"\n")
		ret
	end if
	var a: []int :: #[3]int
	do a[0] :: ss[0].toInt(&)
	do a[1] :: cui@inputInt()
	do a[2] :: cui@inputInt()
	do a.sort()
	var ans: int :: 0
	if(a[0] <> a[1])
		do ans :: a[0] + a[2]
	else
		do ans :: a[0] + a[1]
	end if
	do cui@print("\{ans}\n")
end func