Palindrome

Time Limit: 1000 ms Memory Limit: 65536 KiB

Problem Description

A string is said to be a palindrome if it reads the same both forwards and backwards, for example "madam" is a palindrome while "acm" is not.
Now we want to know how many palindrome strings in the given strings.

Input

The first line of the input contains a single integer T, which indicates number of the given strings.
The next T lines contain one string S, whose length is less than 1000 letters.

Output

One integer indicates the number of palindrome strings.

Sample Input

5
ababa
aabb
ab
cccccc
Abcd

Sample Output

2

Hint

Source