#include <string>
#include <iostream>
using namespace std;
string s; int cnt[5005]; bool dp[5005][5005];
int main() {
	cin >> s;
	int n = s.size();
	for (int i = 0; i < n; i++) dp[i][i] = dp[i][i + 1] = true;
	for (int i = 2; i <= n; i++) {
		for (int l = 0; l <= n - i; l++) {
			int r = l + i;
			if (dp[l + 1][r - 1] && s[l] == s[r - 1]) dp[l][r] = true;
		}
	}
	for (int i = 1; i <= n; i++) {
		for (int j = i + 1; j <= n; j++) {
			if (dp[0][i] && dp[i][j]) cnt[j]++;
		}
	}
	long long ret = 0;
	for (int i = 0; i < n; i++) {
		for (int j = i + 1; j < n; j++) {
			if (dp[j][n]) ret += cnt[i];
		}
	}
	cout << ret << endl;
	return 0;
}