A, B = gets.split.map(&:to_i)
s = (A * B).to_s
limit = (A * B) >= 0 ? 2 : 3

cond1 = A.abs >= 100 && (A.to_s.scan(/[1-9]/).size <= 1)
cond2 = B.abs >= 100 && (B.to_s.scan(/[1-9]/).size <= 1)

if cond1 && cond2 && s.size - s.count('0') <= limit && s[-2..-1].chars.all?('0')
  puts s[0..-2]
elsif s.size <= 8 || (s.start_with?('-') && s.size <= 9)
  puts s
else
  puts 'E'
end