Question 921319
<pre>
Here are all the two-digit prime numbers.  Now you are to pick out the
ones whose units digit is more than its tens digit, and count them.

11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 
47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97

Edwin</pre>