#include <iostream>
#include <algorithm>
#include <vector>
#include <functional>
#include <limits>

template <int MOD>
class ModInt {
    using lint = long long;

public:
    int val;

    // constructor
    ModInt(lint v = 0) : val(v % MOD) {
        if (val < 0) val += MOD;
    };

    // assignment
    ModInt& operator=(const ModInt& x) {
        if (this != &x) { this->val = x.val; }
        return *this;
    }

    // unary operator
    ModInt operator+() const { return ModInt(val); }
    ModInt operator-() const { return ModInt(MOD - val); }
    ModInt operator~() const { return *this ^ (MOD - 2); }

    // increment / decrement
    ModInt& operator++() { return *this += 1; }
    ModInt& operator--() { return *this -= 1; }
    ModInt operator++(int) {
        ModInt before = *this;
        ++(*this);
        return before;
    }
    ModInt operator--(int) {
        ModInt before = *this;
        --(*this);
        return before;
    }

    // arithmetic
    ModInt operator+(const ModInt& x) const { return ModInt(*this) += x; }
    ModInt operator-(const ModInt& x) const { return ModInt(*this) -= x; }
    ModInt operator*(const ModInt& x) const { return ModInt(*this) *= x; }
    ModInt operator%(const ModInt& x) const { return ModInt(*this) %= x; }
    ModInt operator/(const ModInt& x) const { return ModInt(*this) /= x; }
    ModInt operator^(const ModInt& x) const { return ModInt(*this) ^= x; }

    // compound assignment
    ModInt& operator+=(const ModInt& x) {
        if ((val += x.val) >= MOD) val -= MOD;
        return *this;
    }
    ModInt& operator-=(const ModInt& x) {
        if ((val -= x.val) < 0) val += MOD;
        return *this;
    }
    ModInt& operator*=(const ModInt& x) {
        val = lint(val) * x.val % MOD;
        return *this;
    }
    ModInt& operator%=(const ModInt& x) {
        val %= x.val;
        return *this;
    }
    ModInt& operator/=(const ModInt& x) { return *this *= ~x; }
    ModInt& operator^=(const ModInt& x) {
        int n = x.val;
        ModInt b = *this;
        if (n < 0) n = -n, b = ~b;

        *this = 1;
        while (n > 0) {
            if (n & 1) *this *= b;
            n >>= 1;
            b *= b;
        }
        return *this;
    }

    // compare
    bool operator==(const ModInt& b) const { return val == b.val; }
    bool operator!=(const ModInt& b) const { return val != b.val; }
    bool operator<(const ModInt& b) const { return val < b.val; }
    bool operator<=(const ModInt& b) const { return val <= b.val; }
    bool operator>(const ModInt& b) const { return val > b.val; }
    bool operator>=(const ModInt& b) const { return val >= b.val; }

    // I/O
    friend std::ostream& operator<<(std::ostream& os, const ModInt& x) noexcept { return os << x.val; }
    friend std::istream& operator>>(std::istream& is, ModInt& x) noexcept { return is >> x.val; }
};

template <class Data, class Operator>
class SegmentTree {
    using DataMerger = std::function<Data(Data, Data)>;
    using Applier = std::function<Data(Operator, Data)>;

private:
    int length;
    std::vector<Data> dat;
    Data dat_id;        // データの単位元
    DataMerger dmerge;  // データをマージする関数
    Applier app;        // データに作用素を適用する関数

    Data query(int ql, int qr, int nidx, int nl, int nr) {
        if (nr <= ql || qr <= nl) return dat_id;
        if (ql <= nl && nr <= qr) return dat[nidx];
        Data vl = query(ql, qr, nidx * 2, nl, (nl + nr) / 2);
        Data vr = query(ql, qr, nidx * 2 + 1, (nl + nr) / 2, nr);
        return dmerge(vl, vr);
    }

public:
    explicit SegmentTree(int N, Data dat_id, DataMerger dmerge, Applier app)
        : length(1), dat_id(dat_id), dmerge(dmerge), app(app) {
        while (length < N) length <<= 1;
        dat.assign(length * 2, dat_id);
    }

    // half-open interval [ql, qr)
    Data query(int ql, int qr) { return query(ql, qr, 1, 0, length); }

    void update(int idx, Operator e) {
        int nidx = idx + length;
        dat[nidx] = app(e, dat[nidx]);
        while (nidx > 0) {
            nidx >>= 1;
            dat[nidx] = dmerge(dat[nidx * 2], dat[nidx * 2 + 1]);
        }
    }
};

using lint = long long;

constexpr int MOD = 1e9 + 7;
using mint = ModInt<MOD>;

constexpr lint INF = std::numeric_limits<lint>::max() / 2;

int main() {
    int n;
    lint a, b;
    std::cin >> n >> a >> b;
    if (a < b) std::swap(a, b);
    // a >= b

    std::vector<lint> s(n);
    for (auto& x : s) std::cin >> x;
    // 番兵
    s.insert(s.begin(), -INF);
    s.push_back(INF);
    n += 2;

    std::vector<int> prevb(n);
    // [j, i]の任意の要素の差がb以上な最小のj
    prevb[0] = 0;
    for (int i = 1; i < n; ++i) {
        prevb[i] = (s[i] - s[i - 1] >= b ? prevb[i - 1] : i);
    }

    SegmentTree<mint, mint> seg(
        n, 0,
        [](mint a, mint b) { return a + b; },
        [](mint e, mint a) { return a + e; });
    // iがXに属する場合の数

    seg.update(0, 1);
    for (int i = 1; i < n; ++i) {
        int l = prevb[i - 1];
        int r = std::upper_bound(s.begin(), s.end(), s[i] - a) - s.begin();
        if (l - 2 < 0 || s[l] - s[l - 2] >= b) --l;
        // [l, r)を直前のXに属する要素として選択可能
        seg.update(i, seg.query(l, r));
    }

    std::cout << seg.query(n - 1, n) << std::endl;
    return 0;
}


Measured memory_bytes: 2420