In some programming languages(like C/C++), we define numbers like this:
number -> digits optional_fraction optional_exponent optional_fraction -> [empty] | .digits optional_exponent -> [empty] | E digits | E - digits digits -> digit | digits digit digit -> [0-9]
Given a string, you have to tell whether it is a legal number.
输入解释
The first line of input contains an integer T(1<=T<=100) which indicate the number of test cases. Then T test cases follow. Each test case contains one line. Each line contains a string whose length will not exceed 100.
Note: there are no spaces and tabs at the begin and the end of the string.
输出解释
For each test case, you have to tell whether the string is a legal number. If it is a legal number, output "YES" in a single line, otherwise, output "NO" in a single line.