Some numbers can be expressed as the product of two composite numbers and the sum of one composite number, for example, 32=4*6+8, 45=4*9+9. Then, among the natural numbers that do not have this property, what is the largest one?
有些数可以表示成两个合数的乘积与一个合数之和的形式，例如32=4*6+8，45=4*9+9．那么在不具备这种性质的自然数中，最大的一个多少．
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">16 + 27</gadget>
<output>43</output>

<gadget id="calculator">43 - 8</gadget>
<output>35</output>

<result>35</result>