#include <bits/stdc++.h>
using namespace std;

vector<int> sa_naive(const vector<int> &s){
	int n = (int)s.size();
	vector<int> sa(n);
	iota(sa.begin(), sa.end(), 0);
	sort(sa.begin(), sa.end(), [&](int l, int r){
		if(l == r) return false;
		for(; l < n && r < n; ++ l, ++ r) if(s[l] != s[r]) return s[l] < s[r];
		return l == n;
	});
	return sa;
}
vector<int> sa_doubling(const vector<int> &s){
	int n = (int)s.size();
	vector<int> sa(n), rnk = s, tmp(n);
	iota(sa.begin(), sa.end(), 0);
	for(int k = 1; k < n; k <<= 1){
		auto cmp = [&](int x, int y){
			if(rnk[x] != rnk[y]) return rnk[x] < rnk[y];
			int rx = x + k < n ? rnk[x + k] : -1;
			int ry = y + k < n ? rnk[y + k] : -1;
			return rx < ry;
		};
		sort(sa.begin(), sa.end(), cmp);
		tmp[sa[0]] = 0;
		for(int i = 1; i < n; ++ i) tmp[sa[i]] = tmp[sa[i - 1]] + (cmp(sa[i - 1], sa[i]) ? 1 : 0);
		swap(tmp, rnk);
	}
	return sa;
}
template <int THRESHOLD_NAIVE = 10, int THRESHOLD_DOUBLING = 40>
vector<int> sa_is(const vector<int> &s, int upper){
	int n = (int)s.size();
	if(n == 0) return {};
	if(n == 1) return {0};
	if(n == 2){
		if(s[0] < s[1]) return {0, 1};
		else return {1, 0};
	}
	if(n < THRESHOLD_NAIVE) return sa_naive(s);
	if (n < THRESHOLD_DOUBLING) return sa_doubling(s);
	vector<int> sa(n);
	vector<bool> ls(n);
	for(int i = n - 2; i >= 0; -- i) ls[i] = (s[i] == s[i + 1]) ? ls[i + 1] : (s[i] < s[i + 1]);
	vector<int> sum_l(upper + 1), sum_s(upper + 1);
	for(int i = 0; i < n; ++ i){
		if(!ls[i]) ++ sum_s[s[i]];
		else ++ sum_l[s[i] + 1];
	}
	for(int i = 0; i <= upper; ++ i){
		sum_s[i] += sum_l[i];
		if(i < upper) sum_l[i + 1] += sum_s[i];
	}
	auto induce = [&](const vector<int> &lms){
		fill(sa.begin(), sa.end(), -1);
		vector<int> buf(upper + 1);
		copy(sum_s.begin(), sum_s.end(), buf.begin());
		for(auto d: lms){
			if(d == n) continue;
			sa[buf[s[d]] ++] = d;
		}
		copy(sum_l.begin(), sum_l.end(), buf.begin());
		sa[buf[s[n - 1]] ++] = n - 1;
		for(int i = 0; i < n; ++ i){
			int v = sa[i];
			if(v >= 1 && !ls[v - 1]) sa[buf[s[v - 1]] ++] = v - 1;
		}
		copy(sum_l.begin(), sum_l.end(), buf.begin());
		for(int i = n - 1; i >= 0; -- i){
			int v = sa[i];
			if(v >= 1 && ls[v - 1]) sa[-- buf[s[v - 1] + 1]] = v - 1;
		}
	};

	vector<int> lms_map(n + 1, -1);
	int m = 0;
	for (int i = 1; i < n; i++) {
	if (!ls[i - 1] && ls[i]) {
	lms_map[i] = m++;
	}
	}
	vector<int> lms;
	lms.reserve(m);
	for (int i = 1; i < n; i++) {
	if (!ls[i - 1] && ls[i]) {
	lms.push_back(i);
	}
	}

	induce(lms);

	if (m) {
	vector<int> sorted_lms;
	sorted_lms.reserve(m);
	for (int v : sa) {
	if (lms_map[v] != -1) sorted_lms.push_back(v);
	}
	vector<int> rec_s(m);
	int rec_upper = 0;
	rec_s[lms_map[sorted_lms[0]]] = 0;
	for (int i = 1; i < m; i++) {
	int l = sorted_lms[i - 1], r = sorted_lms[i];
	int end_l = (lms_map[l] + 1 < m) ? lms[lms_map[l] + 1] : n;
	int end_r = (lms_map[r] + 1 < m) ? lms[lms_map[r] + 1] : n;
	bool same = true;
	if (end_l - l != end_r - r) {
	same = false;
	} else {
	while (l < end_l) {
	if (s[l] != s[r]) {
	break;
	}
	l++;
	r++;
	}
	if (l == n || s[l] != s[r]) same = false;
	}
	if (!same) rec_upper++;
	rec_s[lms_map[sorted_lms[i]]] = rec_upper;
	}

	auto rec_sa =
	sa_is<THRESHOLD_NAIVE, THRESHOLD_DOUBLING>(rec_s, rec_upper);

	for (int i = 0; i < m; i++) {
	sorted_lms[i] = lms[rec_sa[i]];
	}
	induce(sorted_lms);
	}
	return sa;
}
vector<int> suffix_array(const vector<int> &s, int upper){
	assert(0 <= upper);
	for(int d: s) assert(0 <= d && d <= upper);
	auto sa = sa_is(s, upper);
	return sa;
} // O(n + upper) time
template<typename T> vector<int> suffix_array(const vector<T> &s){
	int n = (int)s.size();
	vector<int> idx(n);
	iota(idx.begin(), idx.end(), 0);
	sort(idx.begin(), idx.end(), [&](int l, int r){ return s[l] < s[r]; });
	vector<int> s2(n);
	int now = 0;
	for(int i = 0; i < n; ++ i){
		if(i && s[idx[i - 1]] != s[idx[i]]) ++ now;
		s2[idx[i]] = now;
	}
	return sa_is(s2, now);
} // O(n log n) time, O(n) space
vector<int> suffix_array(const string& s){
	int n = (int)s.size();
	vector<int> s2(n);
	for(int i = 0; i < n; ++ i) s2[i] = s[i];
	return sa_is(s2, 255);
} // O(n) time
template<typename T>
vector<int> lcp_array(const vector<T> &s, const vector<int> &sa){
	int n = (int)s.size();
	assert(n >= 1);
	vector<int> rnk(n), lcp(n - 1);
	for(int i = 0; i < n; ++ i) rnk[sa[i]] = i;
	int h = 0;
	for(int i = 0; i < n; ++ i){
		if(h > 0) -- h;
		if(rnk[i] == 0) continue;
		int j = sa[rnk[i] - 1];
		for(; j + h < n && i + h < n; ++ h) if(s[j + h] != s[i + h]) break;
		lcp[rnk[i] - 1] = h;
	}
	return lcp;
} // O(n)
vector<int> lcp_array(const string& s, const vector<int>& sa){
	int n = (int)s.size();
	vector<int> s2(n);
	for(int i = 0; i < n; ++ i) s2[i] = s[i];
	return lcp_array(s2, sa);
} // O(n)

int main(){
	cin.tie(0)->sync_with_stdio(0);
	cin.exceptions(ios::badbit | ios::failbit);
	string s;
	cin >> s;
	int n = (int)s.size();
	auto sa = suffix_array(s);
	auto lcp = lcp_array(s, sa);
	cout << 1LL * n * (n + 1) / 2 - accumulate(lcp.begin(), lcp.end(), 0LL) << "\n";
	return 0;
}

/*

*/

////////////////////////////////////////////////////////////////////////////////////////
//                                                                                    //
//                                   Coded by Aeren                                   //
//                                                                                    //
////////////////////////////////////////////////////////////////////////////////////////

Measured memory_bytes: 15576