#include <bits/stdc++.h>
using namespace std;
long long n, a[3000], b[3000], w[500], pos[500][5000], ans;
string second;
int ispal(int x, int y) {
  int t = y;
  while (x != y) {
    if (second[x] != second[y]) return 0;
    if (y - x == 1 || y - x == 2) {
      b[t]++;
      return 1;
    }
    x++, y--;
  }
}
int main() {
  cin >> second;
  for (int i = second.size() - 1; i >= 0; i--) {
    a[i] = a[i + 1] + 1;
    for (int j = 0; j < w[second[i] - 97]; j++) {
      a[i] += ispal(i, pos[second[i] - 97][j]);
    }
    pos[second[i] - 97][w[second[i] - 97]] = i;
    w[second[i] - 97]++;
  }
  for (int i = 0; i < second.size() - 1; i++) {
    b[i]++;
    ans += b[i] * a[i + 1];
  }
  cout << ans;
  return 0;
}
