def int_to_exp_representation(num: int) -> tuple[int, int]:
    exp_ = 0
    while abs(num) >= 10 and num % 10 == 0:
        num //= 10
        exp_ += 1

    return num, exp_


def main():
    A, B = map(int, input().split())
    A_mantissa, A_exp = int_to_exp_representation(A)
    B_mantissa, B_exp = int_to_exp_representation(B)
    if abs(A_mantissa) < 10 and abs(B_mantissa) < 10 and A_exp >= 2 and B_exp >= 2:
        print(A*B//10)
        return

    calculator_result = A * B
    if abs(calculator_result) > 99999999:
        print("E")
    else:
        print(calculator_result)


if __name__ == "__main__":
    main()