1<?xml version="1.0" encoding="UTF-8"?>
2<out>0 is a number
31 is a number
42 is a number
5-1 is a number
60.0001 is a number
7five is not a number
8NaN is not a number
9 is not a number
10. is not a number
110. is a number
12.0 is a number
13-0 is a number
14</out>