A seven-digit \overline{m0A0B9C} is a multiple of 33, we count the number of such seven-digit numbers as am. For example, a5 means: the number of seven-digit numbers that are in the form of \overline{50A0B9C} and are multiples of 33. Then a2-a3=how much.
一个七位数\overline{m0A0B9C}是33的倍数，我们计这样的七位数的个数为am．比如a5表示：形如\overline{50A0B9C}且是33的倍数的七位数的个数．则a2-a3=多少．
<gadget id="calculator">36 - 28</gadget>
<output>8</output>

<result>8</result>