def ax10n(s):
	if s == '0': return False
	if s[0] == '-':
		if len(s) < 4: return False
		for i in range(2, len(s)):
			if s[i] != '0': return False
	else:
		if len(s) < 3: return False
		for i in range(1, len(s)):
			if s[i] != '0': return False
	return True

A, B = raw_input().split()
if ax10n(A) and ax10n(B):
	ans10 = int(A)*int(B)
	ans = ans10/10
	print ans
else:
	ans = int(A)*int(B)
	if len(str(abs(ans))) > 8: print 'E'
	else: print ans