Problem: Given a string S, count the number of non empty sub strings that are palindromes.
A sub string is any continuous sequence of characters in the string.
A string is said to be palindrome, if the reverse of the string is same as itself.
Two sub strings are different if they occur at different positions in S

Input
Input contains only a single line that contains string S.   

Output
Print a single number, the number of sub strings that are palindromes.

Constraints
1 ≤ |S| ≤ 50
S contains only lower case latin letters, that is characters a to z.

SAMPLE INPUT
dskjkd

SAMPLE OUTPUT
7

Explanation

The 7 sub strings are d, s, k, j, k, d, kjk.

Solution (in PYTHON):

Solution:
'''
# Read input from stdin and provide input before running code

name = raw_input('What is your name?\n')
print 'Hi, %s.' % name
'''
#print 'Hello World!'


s= raw_input();
res=0;
for i in range (0,len(s)):
	for j in range (i+1,len(s)+1):
		if ( s[i:j] == s[i:j][::-1] ):
			res+=1;

print res;