If the sum of the digits of a number is an odd number, and it is equal to the product of two two-digit numbers, such as 144=12*12. Then how many natural numbers less than 200 satisfy the condition.
如果一个数的各位数字之和是奇数，而且它等于两个两位数的乘积，如144=12*12．则满足条件的小于200的自然数有多少个．
<result>9</result>