a, b = input().split()
if a[0] == "-":
    ma = -1
    a = a[1:]
else:
    ma = 1

if b[0] == "-":
    mb = -1
    b = b[1:]
else:
    mb = 1

if a[1:] == "0" * (len(a) - 1) and b[1:] == "0" * (len(b) - 1) and len(a) >= 3 and len(b) >= 3:
    q = 10 ** (len(a) + len(b) - 3) * int(a[0]) * int(b[0]) * ma * mb
    print(q)

else:
    q = int(a) * int(b) * ma * mb
    if -99999999 <= q <= 99999999:
        print(q)
    else:
        print("E")