#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
using ll = long long;
using u64 = uint_fast64_t;
using pii = pair<int, int>;
using pll = pair<long long, long long>;
#define rep(i, n) for(int i = 0; i < (n); ++i)
#define all(x) (x).begin(),(x).end()
constexpr char ln =  '\n';
constexpr long long MOD = 1000000007;
//constexpr long long MOD = 998244353;
template<class T1, class T2> inline bool chmax(T1 &a, T2 b) { if (a < b) { a = b; return true;} return false; }
template<class T1, class T2> inline bool chmin(T1 &a, T2 b) { if (a > b) { a = b; return true;} return false; }
inline int popcount(int x) {return __builtin_popcount(x);}
inline int popcount(long long x) {return __builtin_popcountll(x);}
void print() { cout << "\n"; }
template<class T, class... Args>
void print(const T &x, const Args &... args) {
    cout << x << " ";
    print(args...);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////

template <uint_fast64_t Modulus> 
struct ModInt {
    using u64 = uint_fast64_t;

    u64 a;

    constexpr ModInt(const long long x = 0) noexcept : a(x >= 0 ? x % Modulus : (Modulus - (-x) % Modulus) % Modulus) {}
    constexpr u64 &value() noexcept {return a;}
    constexpr const u64 &value() const noexcept {return a;}
    constexpr ModInt operator+(const ModInt rhs) const noexcept {return ModInt(*this) += rhs;}
    constexpr ModInt operator-(const ModInt rhs) const noexcept {return ModInt(*this) -= rhs;}
    constexpr ModInt operator*(const ModInt rhs) const noexcept {return ModInt(*this) *= rhs;}
    constexpr ModInt operator/(const ModInt rhs) const noexcept {return ModInt(*this) /= rhs;}
    constexpr ModInt operator^(const long long rhs) const noexcept {return ModInt(*this) ^= rhs;}
    constexpr bool operator==(const ModInt &rhs) const noexcept {return a == rhs.a;}
    constexpr bool operator!=(const ModInt &rhs) const noexcept {return a != rhs.a;}
    constexpr ModInt &operator+=(const ModInt rhs) noexcept {
        a += rhs.a;
        if (a >= Modulus) {
            a -= Modulus;
        }
        return *this;
    }
    constexpr ModInt &operator-=(const ModInt rhs) noexcept {
        if (a < rhs.a) {
            a += Modulus;
        }
        a -= rhs.a;
        return *this;
    }
    constexpr ModInt &operator*=(const ModInt rhs) noexcept {
        a = a * rhs.a % Modulus;
        return *this;
    }
    constexpr ModInt &operator/=(ModInt rhs) noexcept {
        u64 exp = Modulus - 2;
        while (exp) {
            if (exp&1) *this *= rhs;
            exp >>= 1;
            rhs *= rhs;
        }
        return *this;
    }
    constexpr ModInt &operator^=(long long exp) noexcept {
        ModInt rhs = a;
        a = 1;
        while (exp) {
            if (exp&1) *this *= rhs;
            exp >>= 1;
            rhs *= rhs;
        }
        return *this;
    }

    friend ostream &operator<<(ostream& os, const ModInt& rhs) noexcept {return os << rhs.a;}
    friend istream &operator>>(istream& is, ModInt& rhs) noexcept {long long a; is >> a; rhs = a; return is;}
};

using mint = ModInt<MOD>;

template<typename T, typename Monoid>
struct SegmentTree {
    T unity;
    Monoid merge;
    int N;
    vector<T> node;

    SegmentTree(Monoid f, T id) : merge(f), unity(id) {}

    void init(int sz) {
        N = 1;
        while (N < sz) N *= 2;
        node.assign(2*N,unity);
    }

    void set(int k, const T &val) {node[k+N] = val;}

    void build() {
        for (int i = N-1; i > 0; --i) {
            node[i] = merge(node[i<<1|0], node[i<<1|1]);
        }
    }

    // (0-indexed)
    void update(int x, T val) {
        x += N;
        node[x] = val;
        while (x > 1) {
            x >>= 1;
            node[x] = merge(node[x<<1|0], node[x<<1|1]);
        }
    }

    // [l, r) (0-indexed)
    T get(int l, int r) {
        if (l >= r) return unity;
        T resl = unity, resr = unity;
        l += N; r += N;
        while (l < r) {
            if (l & 1) resl = merge(resl, node[l++]);
            l >>= 1;
            if (r & 1) resr = merge(node[--r], resr);
            r >>= 1;
        }
        return merge(resl, resr);
    }

    T operator[](int x) {return node[x+N];}
};

int main() {
    ios::sync_with_stdio(false); cin.tie(nullptr);
    ll N,A,B; cin >> N >> A >> B;
    if (A > B) swap(A,B);
    vector<ll> S(N);
    rep(i,N) cin >> S[i];
    
    rep(i,N-2) {
        if (S[i]+A > S[i+2]) {
            cout << 0 << ln;
            return 0;
        }
    }
    map<int, int> dic;
    rep(i,N-1) {
        if (S[i]+A > S[i+1]) {
            dic[i+2] = i;
        }
    }
    
    auto f=[](mint a, mint b) {return a+b;};
    const mint id = 0;
    SegmentTree<mint, decltype(f)> seg(f,id);
    seg.init(N+1);
    seg.set(0,1);
    seg.build();
    int cur = -1;
    rep(i,N) {
        int k = upper_bound(all(S),S[i]-B) - S.begin();
        if (dic.count(i)) cur = dic[i];
        seg.update(i+1,seg.get(cur+1,k+1)); 
    }

    if (dic.count(N)) cur = dic[N];
    cout << seg.get(cur+1,N+1) << ln;
}

Measured memory_bytes: 7808