英语翻译

问题描述:

英语翻译
how many five - digit positive integers,divisible by 9,can be written using only the digis 3 and

存在多少由3和6组成的5位正整数,能被9整除.
33336,33363,33633,36333,63333
36666,63666,66366,66636,66663
36666,63666,66366 ,66636 ,66663