Another Easy Problem

You have been given two integers $U$ and $V$. You have to find how many of the prime numbers between $u$ and $v$ (both inclusive) have the num of their digits even. ###Input: - First line will contain $T$, number of testcases. Then the testcases follow. - Each testcase contains of a single line of input, two integers $U, V$. ###Output: For each testcase, output in a single line having an inte