//
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//
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//    d@@[                         ?"BMY"=            .d@@@@H,          ?TWHHY"!                        d@@e    
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//       ?77WMMMYB""!                                                                        _7"WWMMMY"7=     

// need
#include <iostream>
#include <algorithm>
// data structure
#include <bitset>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <utility>
#include <vector>
#include <complex>
//#include <deque>
#include <valarray>
#include <unordered_map>
#include <unordered_set>
#include <array>
// etc
#include <cassert>
#include <cmath>
#include <functional>
#include <iomanip>
#include <chrono>
#include <random>
#include <numeric>
#include <fstream>

//std::ifstream ifs("b.in");
//auto& scan_in = ifs;
auto& scan_in = std::cin;

// input
#define INIT std::ios::sync_with_stdio(false);std::cin.tie(0);
#define VAR(type, ...)type __VA_ARGS__;MACRO_VAR_Scan(__VA_ARGS__);
template<typename T> void MACRO_VAR_Scan(T& t) { scan_in >> t; }
template<typename First, typename...Rest>void MACRO_VAR_Scan(First& first, Rest& ...rest) { scan_in >> first; MACRO_VAR_Scan(rest...); }
#define VEC_ROW(type, n, ...)std::vector<type> __VA_ARGS__;MACRO_VEC_ROW_Init(n, __VA_ARGS__); for(int w_=0; w_<n; ++w_){MACRO_VEC_ROW_Scan(w_, __VA_ARGS__);}
template<typename T> void MACRO_VEC_ROW_Init(int n, T& t) { t.resize(n); }
template<typename First, typename...Rest>void MACRO_VEC_ROW_Init(int n, First& first, Rest& ...rest) { first.resize(n); MACRO_VEC_ROW_Init(n, rest...); }
template<typename T> void MACRO_VEC_ROW_Scan(int p, T& t) { scan_in >> t[p]; }
template<typename First, typename...Rest>void MACRO_VEC_ROW_Scan(int p, First& first, Rest& ...rest) { scan_in >> first[p]; MACRO_VEC_ROW_Scan(p, rest...); }
#define VEC(type, c, n) std::vector<type> c(n);for(auto& i:c)scan_in>>i;
#define MAT(type, c, m, n) std::vector<std::vector<type>> c(m, std::vector<type>(n));for(auto& R:c)for(auto& w:R)scan_in>>w;
// output
template<typename T>void MACRO_OUT(const T t) { std::cout << t; }
template<typename First, typename...Rest>void MACRO_OUT(const First first, const Rest...rest) { std::cout << first << " "; MACRO_OUT(rest...); }
#define OUT(...) MACRO_OUT(__VA_ARGS__);
#define FOUT(n, dist) std::cout<<std::fixed<<std::setprecision(n)<<(dist);
#define SOUT(n, c, dist) std::cout<<std::setw(n)<<std::setfill(c)<<(dist);
#define VOUT(v) for(size_t i = 0; i < v.size(); ++i) {OUT(v[i]);if(i+1<v.size()){SP}}
#define EOUT(...) do{ OUT(__VA_ARGS__)BR; exit(0); }while(0);
#define SP std::cout<<" ";
#define TAB std::cout<<"\t";
#define BR std::cout<<"\n";
#define SPBR(w, n) std::cout<<(w + 1 == n ? '\n' : ' ');
#define ENDL std::cout<<std::endl;
#define FLUSH std::cout<<std::flush;
#define SHOW(dist) {std::cerr << #dist << "\t: " << (dist) << "\n";}
// utility
#define ALL(a) (a).begin(),(a).end()
#define FOR(w, a, n) for(int w=(a);w<(n);++w)
#define REP(w, n) FOR(w, 0, n)
#define RFOR(w, a, n) for(int w=(n)-1;w>=(a);--w)
#define RREP(w, n) RFOR(w, 0, n)
template<class S, class T, class U> bool IN(S a, T x, U b) { return a <= x && x < b; }
template<class T> inline T CHMAX(T& a, const T b) { return a = (a < b) ? b : a; }
template<class T> inline T CHMIN(T& a, const T b) { return a = (a > b) ? b : a; }
// test
template<class T> using V = std::vector<T>;
template<class T> using VV = V<V<T>>;

template<typename S, typename T>
std::ostream& operator<<(std::ostream& os, const std::pair<S, T>& p) {
	os << "(" << p.first << ", " << p.second << ")"; return os;
}
template<typename T>
std::ostream& operator<<(std::ostream& os, const std::vector<T>& v) {
	os << "{";
	for (size_t i = 0; i < v.size(); ++i) os << v[i] << ((i + 1 < v.size()) ? ", " : ""); os << "}";
	return os;
}
template<typename T>
std::ostream & operator<<(std::ostream & os, const std::set<T> & v) {
	os << "{";
	for (auto it = v.cbegin();;) {
		os << *it; ++it;
		if (it == v.cend()) { os << "}"; break; }
		else { os << ", "; }
	}
	return os;
}
template<typename S, typename T>
std::ostream& operator<<(std::ostream & os, const std::map<S, T> & m) {
	os << "{";
	for (auto it = m.cbegin(); it != m.cend();) { os << it->first << ":" << it->second; ++it; os << (it == m.cend() ? "" : ", "); } os << "}";
	return os;
}
template<typename T>
std::ostream& operator<<(std::ostream & os, std::queue<T> q) {
	os << "<";
	while (!q.empty()) { os << q.front(); q.pop(); os << (q.empty() ? "<" : ", "); }
	return os;
}
template<typename T>
std::ostream& operator<<(std::ostream & os, std::stack<T> q) {
	os << ">";
	while (!q.empty()) { os << q.top(); q.pop(); os << (q.empty() ? "]" : ", "); }
	return os;
}
namespace std {
	template<typename S, typename T> class numeric_limits<pair<S, T>> {
	public:
		static constexpr pair<S, T> max() noexcept { return { numeric_limits<S>::max(), numeric_limits<T>::max() }; }
		static constexpr pair<S, T> lowest() noexcept { return { numeric_limits<S>::lowest(), numeric_limits<T>::lowest() }; }
	};
}

// type/const
using i64 = std::int_fast64_t;
using u64 = std::uint_fast64_t;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using PAIR = std::pair<i64, i64>;
using PAIRLL = std::pair<ll, ll>;
constexpr int INFINT = (1 << 30) - 1;                    // 1.07x10^ 9
constexpr int INFINT_LIM = (1LL << 31) - 1;              // 2.15x10^ 9
constexpr ll INFLL = 1LL << 60;                          // 1.15x10^18
constexpr ll INFLL_LIM = (1LL << 62) - 1 + (1LL << 62);  // 9.22x10^18
constexpr double EPS = 1e-6;
constexpr i64 MOD = 998244353;
constexpr double PI = 3.141592653589793238462643383279;
template<class T, size_t N> void FILL(T(&a)[N], const T & val) { for (auto& x : a) x = val; }
template<class ARY, size_t N, size_t M, class T> void FILL(ARY(&a)[N][M], const T & val) { for (auto& b : a) FILL(b, val); }
template<class T> void FILL(std::vector<T> & a, const T & val) { for (auto& x : a) x = val; }
template<class ARY, class T> void FILL(std::vector<std::vector<ARY>> & a, const T & val) { for (auto& b : a) FILL(b, val); }
// ------------>8---------

class SAIS {
private:
	const signed n;
	std::vector<bool> t;
	std::vector<signed> p1;

	void constructSA(const std::vector<signed>& s, signed K) {
		std::vector<signed> B(K, 0);
		std::vector<signed> start(K + 1, 0);
		std::vector<signed> LMS(n, -1);
		std::vector<signed> tmp(n, -1);

		auto inducedSort = [&](std::vector<signed> & a) {
			std::vector<signed> l(K), r(K);
			for (signed i = 0; i < K; ++i) l[i] = start[i], r[i] = start[i + 1] - 1;

			for (const auto& i : a) {
				if (i > 0 && !t[i - 1]) a[l[s[i - 1]]++] = i - 1;
			}

			for (signed ti = n - 1; ti >= 0; --ti) {
				signed i = a[ti];
				if (i > 0 && t[i - 1]) a[r[s[i - 1]]--] = i - 1;
			}
		};

		{ // create t (L/S-type)
			t[n - 1] = true;
			for (signed i = n - 2; i >= 0; --i) {
				if (s[i] == s[i + 1]) t[i] = t[i + 1];
				else t[i] = (s[i] < s[i + 1]);
			}
		}
		{ // create p1 (position of LMS), B (bucket size) and tmp
			for (signed i = 0; i < n; ++i) {
				if (i > 0 && !t[i - 1] && t[i]) LMS[i] = p1.size(), p1.emplace_back(i);
				++B[s[i]];
			}
			for (signed i = 0; i < K; ++i) start[i + 1] = start[i] + B[i];
		}
		{ // induced-sort LSM-substrings
			std::vector<signed> r(K);
			for (signed i = 0; i < K; ++i) r[i] = start[i + 1] - 1;
			for (signed i : p1) tmp[r[s[i]]--] = i;

			inducedSort(tmp);
		}
		std::vector<signed> s1(p1.size());
		bool conti = false;
		signed K1 = 0;
		{ // create s1
			std::vector<signed> t1(p1.size()), t2(p1.size(), 0);
			signed p = 0;
			for (signed ti = 0; ti < n; ++ti) {
				signed i = tmp[ti];
				if (LMS[i] != -1) t1[p++] = i;
			}

			// compress
			for (signed si = 1; si < t2.size(); ++si) {
				signed i = t1[si - 1], j = t1[si];
				if (s[i] != s[j]) {
					t2[si] = t2[si - 1] + 1;
					continue;
				}
				++i; ++j;
				while (LMS[i] == -1 && LMS[j] == -1 && s[i] == s[j]) ++i, ++j;
				if (LMS[i] != -1 && LMS[j] != -1) {
					t2[si] = t2[si - 1];
					conti = true;
				}
				else {
					t2[si] = t2[si - 1] + 1;
				}
			}
			K1 = t2.back() + 1;

			// re-order
			for (signed i = 0; i < t1.size(); ++i) s1[LMS[t1[i]]] = t2[i];
		}
		std::vector<signed> sa1;
		{ // create sa1 (sometime recursion)
			if (conti) {
				sa1 = SAIS(s1, K1).sa;
			}
			else {
				sa1.resize(s1.size());
				for (signed i = 0; i < s1.size(); ++i) sa1[s1[i]] = i;
			}
		}
		{ // create sa
			sa.resize(n, -1);
			std::vector<signed> r(K);
			for (signed i = 0; i < K; ++i) r[i] = start[i + 1] - 1;
			for (signed pi = static_cast<signed>(p1.size()) - 1; pi >= 0; --pi) {
				signed i = p1[sa1[pi]];
				sa[r[s[i]]--] = i;
			}

			inducedSort(sa);
		}
	}

	void constructLCP(const std::vector<signed> & s) {
		const signed n = s.size() - 1;
		lcp.resize(n + 1);
		std::vector<signed> rank(n + 1);
		for (signed i = 0; i <= n; ++i) rank[sa[i]] = i;

		signed h = 0;
		lcp[0] = 0;
		for (signed i = 0; i < n; ++i) {
			signed j = sa[rank[i] - 1];
			if (h > 0) --h;
			for (; j + h < n && i + h < n; ++h) if (s[j + h] != s[i + h]) break;
			lcp[rank[i] - 1] = h;
		}
	}

	SAIS(std::vector<signed> s, int k) : n(s.size()), t(n) {
		constructSA(s, k); constructLCP(s);
	}
public:
	std::string str;
	std::vector<signed> sa;
	std::vector<signed> lcp;

	SAIS(const std::string & s_) : str(s_), n(s_.size() + 1), t(n) {
		signed k = 0;
		std::vector<signed> s(n);
		{ // compress s
			std::vector<signed> used(256, -1);
			used[0] = 0; s[n - 1] = 0;
			for (signed i = 0; i < n - 1; ++i) used[s_[i]] = 0;
			for (signed i = 0; i < 256; ++i) if (used[i] != -1) used[i] = k++;
			for (signed i = 0; i < n - 1; ++i) s[i] = used[s_[i]];
		}
		constructSA(s, k);
		constructLCP(s);
	}

	void debug_show() const {
		std::cerr << "idx  " << " sa  " << "LCP  " << "suffix\n";
		for (int i = 0; i < n; ++i) {
			std::cerr << std::setw(3) << std::setfill(' ') << i << "  ";
			std::cerr << std::setw(3) << std::setfill(' ') << sa[i] << "  ";
			std::cerr << std::setw(3) << std::setfill(' ') << lcp[i] << "  ";
			std::cerr << str.substr(sa[i]) << "\n";
		}
	}
};

signed main() {
	INIT;

	VAR(std::string, s);
	SAIS sa(s);
	i64 n = s.size();
	i64 ans = n * (n + 1) / 2;
	REP(i, n) ans -= sa.lcp[i + 1];
	OUT(ans)BR;

	return 0;
}

Measured memory_bytes: 16368