#include <fstream>
using namespace std;

ifstream cin("pscpld.in");
ofstream cout("pscpld.out");

///#define int long long

struct node{
    int lung;
    int next[26];
    int suf; int cnt;
};

node root1,root2;
node v[1500001];
int cur,poz;
string s;

void insertie(int ind){
    int aux=cur,curl;
    while(true){
        curl=v[aux].lung;
        if(ind-curl>=1 && s[ind]==s[ind-curl-1]) break;
        aux=v[aux].suf;
    }
    if(v[aux].next[s[ind]-'a']){
        ///cout<<"a";
        cur=v[aux].next[s[ind]-'a'];
        v[cur].cnt++;
        return ;
    }
    poz++;
    v[aux].next[s[ind]-'a']=poz;
    v[poz].lung=v[aux].lung+2;
    v[poz].cnt=1;
    aux=v[aux].suf;cur=poz;
    if(v[cur].lung==1){
        v[cur].suf=2;
        return;
    }
    while(true){
        curl=v[aux].lung;
        if(ind-curl>=1 && s[ind]==s[ind-curl-1]) break;
        aux=v[aux].suf;
    }
    v[cur].suf=v[aux].next[s[ind]-'a'];
}

signed main()
{
    int i;
    long long rasp=0;
    root1.lung=-1;root2.lung=0;
    root1.suf=root2.suf=1;
    v[1]=root1;v[2]=root2;
    poz=2;cur=1;
    cin>>s;
    for(i=0;i<s.size();i++){
        insertie(i);
    }
    for(i=poz;i>=3;i--) {
        v[v[i].suf].cnt+=v[i].cnt;
    }
    for(i=3;i<=poz;i++){
        rasp+=v[i].cnt;///cout<<v[i].cnt<<" ";
    }
    cout<<rasp;
    return 0;
}