import java.io.PrintWriter; import java.util.Arrays; import java.util.Scanner; public class N465 { static Scanner in; static PrintWriter out; static String INPUT = ""; static void solve() { char[] s = in.next().toCharArray(); if(!(s.length >= 4))throw new AssertionError(); if(!(s.length <= 500000))throw new AssertionError(); for(char c : s){ if(!(c >= 'a' && c <= 'z'))throw new AssertionError(); } int n = s.length; int[] rads = palindrome(s); int[] prefix = new int[n]; for(int i = 0;i < n;i++){ if(rads[i] == i+1){ prefix[i]++; } } long[] dp = new long[n]; long[] ep = new long[n]; // ([start,i],[start+delta,i],...,[start+delta*(num-1),i]) int[] start = new int[32]; int[] delta = new int[32]; int[] num = new int[32]; int I = 9999999; int gp = 0; for(int i = 0;i < n;i++){ // g -> g' int gp1 = 0; for(int j = 0;j < gp;j++){ if(start[j]-1 >= 0 && s[start[j]-1] == s[i]){ start[j]--; start[gp1] = start[j]; delta[gp1] = delta[j]; num[gp1] = num[j]; gp1++; } } int[] nstart = new int[32]; int[] ndelta = new int[32]; int[] nnum = new int[32]; int gp2 = 0; for(int j = 0;j < gp1;j++){ if(j == 0 && delta[j] == I || gp2-1 >= 0 && nstart[gp2-1] + ndelta[gp2-1] * (nnum[gp2-1]-1) == start[j] - delta[j]){ // no need to modified nstart[gp2] = start[j]; ndelta[gp2] = delta[j]; nnum[gp2] = num[j]; gp2++; continue; } // split nstart[gp2] = start[j]; ndelta[gp2] = gp2 == 0 ? I : start[j] - (nstart[gp2-1] + ndelta[gp2-1] * (nnum[gp2-1]-1)); nnum[gp2] = 1; gp2++; if(num[j] > 1){ nstart[gp2] = start[j] + delta[j]; ndelta[gp2] = delta[j]; nnum[gp2] = num[j]-1; gp2++; } } // add XX if(i-1 >= 0 && s[i-1] == s[i]){ nstart[gp2] = i-1; ndelta[gp2] = 0 < gp2 ? i-1-(nstart[gp2-1] + ndelta[gp2-1]*(nnum[gp2-1]-1)) : I; nnum[gp2] = 1; gp2++; } // add X nstart[gp2] = i; ndelta[gp2] = 0 < gp2 ? i-(nstart[gp2-1] + ndelta[gp2-1]*(nnum[gp2-1]-1)) : I; nnum[gp2] = 1; gp2++; // merge int gp3 = 0; for(int j = 0;j < gp2;j++){ if(j == 0 || ndelta[j] != ndelta[j-1]){ nstart[gp3] = nstart[j]; ndelta[gp3] = ndelta[j]; nnum[gp3] = nnum[j]; gp3++; }else{ nnum[gp3-1] += nnum[j]; } } start = nstart; delta = ndelta; num = nnum; gp = gp3; for(int j = 0;j < gp;j++){ int r = start[j] + (num[j]-1)*delta[j]; long lv = 0; if(r-1 >= 0)lv += prefix[r-1]; if(num[j] > 1 && start[j]-delta[j] >= 0){ lv += ep[start[j]-delta[j]]; } dp[i] += lv; if(delta[j] <= start[j]){ ep[start[j]-delta[j]] = lv; } } } int[] suffix = new int[n]; for(int i = 0;i < n;i++){ if(rads[2*n-2-i] == i+1){ suffix[n-1-i]++; } } for(int i = n-2;i >= 0;i--){ suffix[i] += suffix[i+1]; } long ret = 0; for(int i = 0;i+2 < n;i++){ ret += dp[i]*suffix[i+2]; } out.println(ret); } // static void check(long[] dp, char[] s) // { // int n = s.length; // for(int i = 0;i < n;i++){ // int ct = 0; // inner: // for(int j = 1;j <= i;j++){ // for(int k = 0, l = j-1;k < l;k++,l--){ // if(s[k] != s[l])continue inner; // } // for(int k = j, l = i;k < l;k++,l--){ // if(s[k] != s[l])continue inner; // } // ct++; // } // tr(i); // assert ct == dp[i]; // } // } public static int[] palindrome(char[] str) { int n = str.length; int[] r = new int[2*n]; int k = 0; for(int i = 0, j = 0;i < 2*n;i += k, j = Math.max(j-k, 0)){ // normally while(i-j >= 0 && i+j+1 < 2*n && str[(i-j)/2] == str[(i+j+1)/2])j++; r[i] = j; // skip based on the theorem for(k = 1;i-k >= 0 && r[i]-k >= 0 && r[i-k] != r[i]-k;k++){ r[i+k] = Math.min(r[i-k], r[i]-k); } } return r; } public static void main(String[] args) throws Exception { in = INPUT.isEmpty() ? new Scanner(System.in) : new Scanner(INPUT); out = new PrintWriter(System.out); solve(); out.flush(); } static int ni() { return Integer.parseInt(in.next()); } static long nl() { return Long.parseLong(in.next()); } static double nd() { return Double.parseDouble(in.next()); } static void tr(Object... o) { if (INPUT.length() != 0) System.out.println(Arrays.deepToString(o)); } }