#include<bits/stdc++.h>

using namespace std;

#define MAXN 50010

#define LL long long

int Ws[MAXN],sa[MAXN],wa[MAXN],wb[MAXN],wv[MAXN],Rank[MAXN],height[MAXN];

char str[MAXN];

int cmp(int *r,int a,int b,int l){return (r[a]==r[b])&&(r[a+l]==r[b+l]);}

void DA(char *r,int *sa,int n,int m)

{

    int i,j,p,*x=wa,*y=wb,*t;

    for(i=0;i<m;i++)Ws[i]=0;

    for(i=0;i<n;i++)Ws[x[i]=r[i]]++;

    for(i=0;i<m;i++)Ws[i]+=Ws[i-1];

    for(i=n-1;i>=0;i--)sa[--Ws[x[i]]]=i;

    for(j=1,p=1;p<n;j*=2,m=p)

    {

        for(p=0,i=n-j;i<n;i++)y[p++]=i;

        for(i=0;i<n;i++)if(sa[i]>=j)y[p++]=sa[i]-j;

        for(i=0;i<n;i++)wv[i]=x[y[i]];

        for(i=0;i<m;i++)Ws[i]=0;

        for(i=0;i<n;i++)Ws[wv[i]]++;

        for(i=0;i<m;i++)Ws[i]+=Ws[i-1];

        for(i=n-1;i>=0;i--)sa[--Ws[wv[i]]]=y[i];

        for(t=x,x=y,y=t,p=1,x[sa[0]]=0,i=1;i<n;i++)

            x[sa[i]]=cmp(y,sa[i-1],sa[i],j)?p-1:p++;

    }

}

void calheight(int n)

{

    int i,j,k=0;

    for(i=1;i<=n;i++)Rank[sa[i]]=i;

    for(i=0;i<n;height[Rank[i++]]=k)

        for(k?k--:0,j=sa[Rank[i]-1];str[i+k]==str[j+k];k++);

}

int main()

{

    freopen("subst1.in","r",stdin);

    freopen("subst1.out","w",stdout);

    int lstr,i;

    LL ans=0;

    scanf("%s",str);

    lstr=strlen(str);

    str[lstr+1]=0;

    DA(str,sa,lstr+1,256);

    calheight(lstr);

    ans=((LL)(lstr+1)*lstr)/2;

    for(i=2;i<=lstr;i++)ans-=(LL)height[i];

    printf("%lld",ans);

    fclose(stdin);

    fclose(stdout);

    return 0;

}