#include <bits/stdc++.h>
using namespace std;
#ifndef ONLINE_JUDGE
	#include <boost/multiprecision/cpp_int.hpp>
	#include <boost/multiprecision/cpp_dec_float.hpp>
	using bll = boost::multiprecision::cpp_int;
	using bdouble = boost::multiprecision::cpp_dec_float_100;
#endif
#ifdef LOCAL_DEV
	void debug_impl() { std::cerr << std::endl; }
	template<typename Head, typename... Tail> void debug_impl(Head head, Tail... tail) { std::cerr << " " << head << (sizeof...(tail) ? "," : ""); debug_impl(tail...); }
	#define debug(...) std::cerr << std::boolalpha << "(" << #__VA_ARGS__ << ") ="; debug_impl(__VA_ARGS__); std::cerr << std::noboolalpha;
#else
	#define debug(...)
#endif
#ifdef LOCAL_TEST
	#define BOOST_STACKTRACE_USE_ADDR2LINE
	#define BOOST_STACKTRACE_ADDR2LINE_LOCATION /usr/local/opt/binutils/bin/addr2line
	#define _GNU_SOURCE
	#include <boost/stacktrace.hpp>
	template<typename T> class dvector : public std::vector<T> {
	public:
		dvector() : std::vector<T>() {}
		explicit dvector(size_t n, const T& value = T()) : std::vector<T>(n, value) {}
		dvector(const std::vector<T>& v) : std::vector<T>(v) {}
		dvector(const std::initializer_list<T> il) : std::vector<T>(il) {}
		dvector(const typename std::vector<T>::iterator first, const typename std::vector<T>::iterator last) : std::vector<T>(first, last) {}
		dvector(const std::string::iterator first, const std::string::iterator last) : std::vector<T>(first, last) {}
		T& operator[](size_t n) {
			try { return this->at(n); } catch (const std::exception& e) {
				std::cerr << boost::stacktrace::stacktrace() << std::endl; return this->at(n);
			}
		}
		const T& operator[](size_t n) const {
			try { return this->at(n); } catch (const std::exception& e) {
				std::cerr << boost::stacktrace::stacktrace() << std::endl; return this->at(n);
			}
		}
	};
	class dbool {
	private:
		bool boolvalue;
	public:
		dbool() : boolvalue(false) {}
		dbool(bool b) : boolvalue(b) {}
		dbool(const dbool &b) : boolvalue(b.boolvalue) {}
		operator bool&() { return boolvalue; }
		operator const bool&() const { return boolvalue; }
	};
	template<typename T> std::ostream& operator<<(std::ostream& s, const dvector<T>& v) {
		for (int i = 0, len = v.size(); i < len; ++i){ s << v[i]; if (i < len - 1) s << "\t"; } return s; }
	template<typename T> std::ostream& operator<<(std::ostream& s, const dvector< dvector<T> >& vv) {
		for (int i = 0, len = vv.size(); i < len; ++i){ s << vv[i] << std::endl; } return s; }
	template<typename T> std::ostream& operator<<(std::ostream& s, const std::set<T>& se) {
		s << "{ "; for (auto itr = se.begin(); itr != se.end(); ++itr){ s << (*itr) << "\t"; } s << "}"; return s; }
	template<typename T> std::ostream& operator<<(std::ostream& s, const std::multiset<T>& se) {
		s << "{ "; for (auto itr = se.begin(); itr != se.end(); ++itr){ s << (*itr) << "\t"; } s << "}"; return s; }
	template<typename T1, typename T2> std::ostream& operator<<(std::ostream& s, const std::map<T1, T2>& m) {
		s << "{" << std::endl; for (auto itr = m.begin(); itr != m.end(); ++itr){ s << "\t" << (*itr).first << " : " << (*itr).second << std::endl; } s << "}"; return s; }
	template<typename T1, typename T2> std::ostream& operator<<(std::ostream& s, const std::pair<T1, T2>& p) { 
		return s << "(" << p.first << ", " << p.second << ")"; }
	#define vector dvector
	#define bool dbool
	class SIGFPE_exception : std::exception {};
	class SIGSEGV_exception : std::exception {};
	void catch_SIGFPE(int e) { std::cerr << boost::stacktrace::stacktrace() << std::endl; throw SIGFPE_exception();	}
	void catch_SIGSEGV(int e) { std::cerr << boost::stacktrace::stacktrace() << std::endl; throw SIGSEGV_exception(); }
	signed convertedmain();
	signed main() { signal(SIGFPE, catch_SIGFPE); signal(SIGSEGV, catch_SIGSEGV); return convertedmain(); }
	#define main() convertedmain()
#endif
//#define int long long
using ll = long long;
//constexpr int INF = 1e9;//INT_MAX=(1<<31)-1=2147483647
constexpr ll INF = (ll)1e18;//(1LL<<63)-1=9223372036854775807
constexpr ll MOD = (ll)1e9 + 7;
constexpr double EPS = 1e-9;
constexpr int dx[4] = {1, 0, -1, 0};
constexpr int dy[4] = {0, 1, 0, -1};
#define p(var) std::cout<<var<<std::endl
#define rep(i, n)   for(ll i=0, i##_length=(n); i< i##_length; ++i)
#define repeq(i, n) for(ll i=1, i##_length=(n); i<=i##_length; ++i)
#define all(v) (v).begin(), (v).end()
#define uniq(v) (v).erase(unique((v).begin(), (v).end()), (v).end());
template<typename T> inline void pv(vector<T> &v) { for(ll i=0, N=v.size(); i<N; i++) std::cout << v[i] << " \n"[i==N-1]; }
template<typename T> inline T gcd(T a, T b) { return b ? gcd(b,a%b) : a; }
template<typename T> inline T lcm(T a, T b) { return a / gcd(a,  b) * b; }
template<typename T1, typename T2> inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }
template<typename T1, typename T2> inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); }

/*-----8<-----template-----8<-----*/
template <class Integral, ::std::size_t Bitlength, Integral None>
class WaveletMatrix {
public:
	using value_type = Integral;
	using size_type = ::std::size_t;
	static constexpr value_type none = None;

private:
	class bitvector {
		using bitfield = ::std::uint_least64_t;
		static constexpr ::std::size_t wordsize = 64;
		static ::std::size_t popcount(bitfield c) {
#ifdef __has_builtin
			return __builtin_popcountll(c);
#else
			c = (c & 0x5555555555555555ULL) + (c >> 1 & 0x5555555555555555ULL);
			c = (c & 0x3333333333333333ULL) + (c >> 2 & 0x3333333333333333ULL);
			c = (c + (c >> 4)) & 0x0F0F0F0F0F0F0F0FULL;
			return static_cast<::std::size_t>(c * 0x0101010101010101ULL >> 56 & 0x7f);
#endif
		}
		using value_type = typename WaveletMatrix::value_type;
		using size_type = typename WaveletMatrix::size_type;
		vector<::std::pair<bitfield, size_type>> dic;

	public:
		size_type cnt;
		value_type bit;
		constexpr bitvector() : dic(), cnt(0), bit(0) {}
		bitvector(const size_type size, const value_type b)
				: dic(size / wordsize + 1, {0, 0}), cnt(0), bit(b) {}
		void set(const size_type index) {
			dic[index / wordsize].first |= static_cast<bitfield>(1) << (index % wordsize);
		}
		void build() {
			const size_type len = dic.size();
			for (size_type i = 1; i < len; ++i)
				dic[i].second = dic[i - 1].second + popcount(dic[i - 1].first);
		}
		size_type rank(const size_type last) const {
			return dic[last / wordsize].second +
						popcount(dic[last / wordsize].first &
							((static_cast<bitfield>(1) << (last % wordsize)) - 1));
		}
		bool access(const size_type index) const {
			return dic[index / wordsize].first >> (index % wordsize) & 1;
		}
	};
	static bool valid(const value_type value) {
		return value == none || !(value >> (Bitlength - 1) >> 1);
	}
	::std::array<bitvector, Bitlength> matrix;
	size_type size_;

	size_type at_least(size_type first, size_type last, const value_type value) const {
		assert(first <= size());
		assert(last <= size());
		assert(first <= last);
		size_type ret = 0;
		for (const auto &v : matrix) {
			const size_type l = v.rank(first), r = v.rank(last);
			if (value & v.bit) {
				first = l + v.cnt;
				last = r + v.cnt;
			} else {
				ret += r - l;
				first -= l;
				last -= r;
			}
		}
		return ret + last - first;
	}

public:
	constexpr WaveletMatrix() : matrix(), size_(0) {}
	template <class InputIter>
	WaveletMatrix(InputIter first, InputIter last) : matrix(), size_(0) {
		vector<value_type> vec0(first, last);
		const size_type len = vec0.size();
		size_ = len;
		vector<value_type> vec_l(len), vec_r(len);
		size_type l, r;
		value_type temp = static_cast<value_type>(1) << (Bitlength - 1);
		for (auto &v : matrix) {
			v = bitvector(len, temp);
			temp >>= 1;
			l = 0;
			r = 0;
			for (size_type j = 0; j < len; ++j)
				if (vec0[j] & v.bit)
					vec_r[r++] = vec0[j], v.set(j);
				else
					vec_l[l++] = vec0[j];
			v.cnt = l;
			v.build();
			::std::swap(vec0, vec_l);
			::std::copy(vec_r.cbegin(), vec_r.cbegin() + r, vec0.begin() + l);
		}
	}

	size_type size() const noexcept { return size_; }
	bool empty() const noexcept { return size() == 0; }

	value_type operator[](size_type index) const {
		assert(index < size());
		value_type ret = 0;
		for (const auto &v : matrix)
			if (v.access(index))
				ret |= v.bit, index = v.rank(index) + v.cnt;
			else
				index -= v.rank(index);
		return ret;
	}
	value_type at(const size_type index) const {
		if (index < size())
			return operator[](index);
		else
			throw ::std::out_of_range("index out of range");
	}

	size_type rank(size_type first, size_type last, const value_type value) const {
		assert(first <= size());
		assert(last <= size());
		assert(first <= last);
		assert(valid(value));
		for (const auto &v : matrix)
			if (value & v.bit)
				first = v.rank(first) + v.cnt, last = v.rank(last) + v.cnt;
			else
				first -= v.rank(first), last -= v.rank(last);
		return last - first;
	}
	value_type quantile(size_type first, size_type last, size_type k = 0, const value_type upper = none) const {
		assert(first <= size());
		assert(last <= size());
		assert(valid(upper));
		if (upper != none)
			k += at_least(first, last, upper);
		if (last - first <= k)
			return none;
		value_type ret = 0;
		for (const auto &v : matrix) {
			const size_type l = v.rank(first), r = v.rank(last);
			if (r - l > k)
				first = l + v.cnt, last = r + v.cnt, ret |= v.bit;
			else
				first -= l, last -= r, k -= r - l;
		}
		return ret;
	}
	value_type rquantile(const size_type first, const size_type last, size_type k = 0, const value_type lower = none) const {
		assert(first <= size());
		assert(last <= size());
		assert(first <= last);
		assert(valid(lower));
		if (lower != none)
			k += last - first - at_least(first, last, lower);
		if (last - first <= k)
			return none;
		return quantile(first, last, last - first - k - 1, none);
	}
	size_type rangefreq(const size_type first, const size_type last, const value_type lower, const value_type upper) const {
		assert(first <= size());
		assert(last <= size());
		assert(first <= last);
		assert(valid(lower));
		assert(valid(upper));
		assert(lower == none || upper == none || lower <= upper);
		size_type ret = lower == none ? last - first : at_least(first, last, lower);
		return upper == none ? ret : ret - at_least(first, last, upper);
	}
};

/*-----8<-----library-----8<-----*/

void solve() {
	ll N,K;
	cin>>N>>K;
	vector<ll> a(N,0);
	rep(i,N)cin>>a[i];

	vector<ll> rui(N+1, 0);
	rep(i,N) rui[i+1] = rui[i] + a[i];

	vector<ll> T(N+1,0);
	rep(i,N+1)T[i]=rui[i]-i*K +2*K*N;

	ll ans=0;
	const ll bitlength = 1 + log2(1e16);
	WaveletMatrix<ll,bitlength,0LL> wm(T.begin(), T.end());

	rep(i,N+1){
		ll index=wm.rangefreq(0, i, 0, T[i]+1);
		ans+=index;
	}

	p(ans);

}
 
signed main() {
	solve();
	return 0;
}


Measured memory_bytes: 12288