#include <cstdio>
#include <cmath>
#include <algorithm>
#include <cstdlib>
#include <cstring>
#include <vector>
#include <string>
#include <set>

using namespace std;

int main()
{
#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    char *str = (char*)malloc(10001);
    scanf("%s", str);
    int len = strlen(str);
    vector<long long> h(len);
    vector<long long> p(len);
    h[0] = str[0]-'a'+1;
    p[0] = 1;
    for (int i = 1; i < len; i++) {
        p[i] = p[i-1] * 3137;
    }
    for (int i = 1; i < len; i++) {
        h[i] = h[i-1] + (str[i]-'a'+1)*p[i];
    }
    long long count = 1;
    vector<long long> hs(len);
    for (int i = 1; i < len; i++) {
        for (int j = 0; j + i - 1 < len; j++) {
            long long hh = p[len - j - 1]*(h[j + i - 1] - (j == 0 ? 0 : h[j - 1]));
            hs[j] = hh;
        }
        sort (hs.begin(), hs.begin() + (len - i + 1));
        long long last = hs[0];
        count++;
        for (int j = 1; j < len - i + 1; j++) {
            if (last != hs[i]) {
                last = hs[i];
                count++;
            }
        }
    }
    printf("%lld", count);
}