func main()
	var a: int :: cui@inputInt()
	var b: int :: cui@inputInt()
	if(f(a) & f(b))
		do cui@print("\{a * b / 10}\n")
		ret
	end if
	var ans: int :: a * b
	if((a * b).abs() < 10 ^ 8)
		do cui@print("\{ans}\n")
	else
		do cui@print("E\n")
	end if
	
	func f(x: int): bool
		var cnt: int :: 0
		while(x % 10 = 0)
			do x :/ 10
			do cnt :+ 1
		end while
		ret cnt >= 2 & 1 <= x.abs() & x.abs() <= 9
	end func
end func