A, B = map(str, input().split())

if A[-2:] == B[-2:] == "00":
    A = int(A)
    B = int(B)
    ans = str(A * B)
    print(ans[:-1])
else:
    A = int(A)
    B = int(B)
    ans = A * B
    if len(abs(ans)) > 8:
        print("E")
    else:
        print(ans)