#include <bits/stdc++.h>
#define FAST_READ ios_base::sync_with_stdio(0);/*cin.tie(0); cout.tie(0);*/
#define ll long long
#define endl "\n"
#define MAXN 200010
 
using namespace std;
 
 
 
string stroka;
map<string,ll>nuj;
ll cnt=0;
int main(){
FAST_READ;
cin>>stroka;
ll n=stroka.size();
for (ll i=0;i<n;i++) 
for (ll len=1; len<=n-i;len++)
if(nuj[stroka.substr(i,len)]!=1)
{
  cnt++;
  nuj[stroka.substr(i,len)]=1;
}
 
cout<<nuj.size()<<endl;
return 0;
} 

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