#include <iostream>
#include <vector>
#include <bitset>
#include <functional>
#include <queue>
#include <algorithm>
#include <map>
#include <set>
#include <tuple>
using namespace std;

template <class T> void chmax(T &x, T y) {if(x<y) x=y;}
template <class T> void chmin(T &x, T y) {if(x>y) x=y;}

#ifndef Modint_hpp
#define Modint_hpp
#include <cassert>
#include <iostream>

template <int mod>
class modint
{
    int val;
public:
    constexpr modint() noexcept : val{0} {}
    constexpr modint(long long x) noexcept : val((x %= mod) < 0 ? mod + x : x) {}
    constexpr long long value() const noexcept { return val; }
    constexpr modint operator++(int) noexcept { modint t = *this; return ++val, t; }
    constexpr modint operator--(int) noexcept { modint t = *this; return --val, t; }
    constexpr modint &operator++() noexcept { return ++val, *this; }
    constexpr modint &operator--() noexcept { return --val, *this; }
    constexpr modint operator-() const noexcept { return modint(-val); }
    constexpr modint &operator+=(const modint &other) noexcept { return (val += other.val) < mod ? 0 : val -= mod, *this; }
    constexpr modint &operator-=(const modint &other) noexcept { return (val += mod - other.val) < mod ? 0 : val -= mod, *this; }
    constexpr modint &operator*=(const modint &other) noexcept { return val = (long long)val * other.val % mod, *this; }
    constexpr modint &operator/=(const modint &other) noexcept { return *this *= inverse(other); }
    constexpr modint operator+(const modint &other) const noexcept { return modint(*this) += other; }
    constexpr modint operator-(const modint &other) const noexcept { return modint(*this) -= other; }
    constexpr modint operator*(const modint &other) const noexcept { return modint(*this) *= other; }
    constexpr modint operator/(const modint &other) const noexcept { return modint(*this) /= other; }
    constexpr bool operator==(const modint &other) const noexcept { return val == other.val; }
    constexpr bool operator!=(const modint &other) const noexcept { return val != other.val; }
    constexpr bool operator!() const noexcept { return !val; }
    friend constexpr modint operator+(long long x, modint y) noexcept { return modint(x) + y; }
    friend constexpr modint operator-(long long x, modint y) noexcept { return modint(x) - y; }
    friend constexpr modint operator*(long long x, modint y) noexcept { return modint(x) * y; }
    friend constexpr modint operator/(long long x, modint y) noexcept { return modint(x) / y; }
    static constexpr modint inverse(const modint &other) noexcept
    {
        assert(other != 0);
        int a{mod}, b{other.val}, u{}, v{1}, t{};
        while(b) t = a / b, a ^= b ^= (a -= t * b) ^= b, u ^= v ^= (u -= t * v) ^= v;
        return {u};
    }
    static constexpr modint pow(modint other, long long e) noexcept
    {
        if(e < 0) e = e % (mod - 1) + mod - 1;
        modint res{1};
        while(e) { if(e & 1) res *= other; other *= other, e >>= 1; }
        return res;
    }
    friend std::ostream &operator<<(std::ostream &os, const modint &other) noexcept { return os << other.val; }
    friend std::istream &operator>>(std::istream &is, modint &other) noexcept { long long val; other = {(is >> val, val)}; return is; }
}; // class modint

template <>
class modint<2>
{
    bool val;
public:
    constexpr modint(bool x = false) noexcept : val{x} {}
    constexpr modint(int x) noexcept : val(x & 1) {}
    constexpr modint(long long x) noexcept : val(x & 1) {}
    constexpr operator bool() const noexcept { return val; }
    constexpr bool value() const noexcept { return val; }
    constexpr modint &operator+=(const modint &other) noexcept { return val ^= other.val, *this; }
    constexpr modint &operator-=(const modint &other) noexcept { return val ^= other.val, *this; }
    constexpr modint &operator*=(const modint &other) noexcept { return val &= other.val, *this; }
    constexpr modint &operator/=(const modint &other) noexcept { assert(other.val); return *this; }
    constexpr modint operator!() const noexcept { return !val; }
    constexpr modint operator-() const noexcept { return *this; }
    constexpr modint operator+(const modint &other) const noexcept { return val != other.val; }
    constexpr modint operator-(const modint &other) const noexcept { return val != other.val; }
    constexpr modint operator*(const modint &other) const noexcept { return val && other.val; }
    constexpr modint operator/(const modint &other) const noexcept { assert(other.val); return *this; }
    constexpr bool operator==(const modint &other) const noexcept { return val == other.val; }
    constexpr bool operator!=(const modint &other) const noexcept { return val != other.val; }
    friend constexpr modint operator+(long long x, modint y) noexcept { return x & 1 ? !y : y; }
    friend constexpr modint operator-(long long x, modint y) noexcept { return x & 1 ? !y : y; }
    friend constexpr modint operator*(long long x, modint y) noexcept { return x & 1 ? y : modint<2>{0}; }
    friend constexpr modint operator/(long long x, modint y) noexcept { assert(y.val); return x & 1 ? y : modint<2>{0}; }
    friend std::ostream &operator<<(std::ostream &os, const modint &other) noexcept { return os << other.val; }
    friend std::istream &operator>>(std::istream &is, modint &other) noexcept { long long val; other.val = (is >> val, val & 1); return is; }
}; // class modint specialization

#endif // Modint_hpp

#include <cassert>
#include <iostream>
#include <valarray>

template <class Ring>
class matrix
{
    struct identity_wrapper
    {
        template <bool arith, class = void>
        struct check { static Ring identity() { return Ring::identity(); } };
        template <class void_t>
        struct check<true, void_t> { static Ring identity() { return 1; } };
        operator Ring() { return check<std::is_arithmetic<Ring>::value>::identity(); }
    };

    using row_type = std::valarray<Ring>;
    using data_type = std::valarray<row_type>;
    data_type data;

    friend std::istream &operator>>(std::istream &is, matrix &mat)
    {
        for(size_t i = 0; i != mat.rows(); ++i)
            for(size_t j = 0; j != mat.columns(); ++j)
                is >> mat[i][j];
        return is;
    }
    friend std::ostream &operator<<(std::ostream &os, const matrix &mat)
    {
        for(size_t i = 0; i != mat.rows(); ++i)
        {
            if(i) os << "\n";
            for(size_t j = 0; j != mat.columns(); ++j) os << (j ? " " : "") << mat[i][j];
        }
        return os;
    }

    friend matrix transpose(const matrix &mat)
    {
        matrix res(mat.columns(), mat.rows());
        for(size_t i{mat.columns()}; i--;)
            for(size_t j{mat.rows()}; j--;)
                res[i][j] = mat[j][i];
        return res;
    }

public:
    explicit matrix(size_t _n = 1) : matrix(_n, _n) {}
    matrix(size_t _r, size_t _c) : data(row_type(_c), _r) {}
    matrix(const data_type &_data) : data(_data) {}

    size_t rows() const { return data.size(); }
    size_t columns() const { return data[0].size(); }

    row_type &operator[](const size_t i) { assert(i < data.size()); return data[i]; }
    const row_type &operator[](const size_t i) const { assert(i < data.size()); return data[i]; }

    matrix operator-() const { return {-data}; }

    matrix &operator+=(const matrix &rhs) { data += rhs.data; return *this; }

    matrix &operator-=(const matrix &rhs) { data -= rhs.data; return *this; }

    matrix &operator*=(matrix rhs) noexcept
    {
        assert(columns() == rhs.rows());
        rhs = transpose(rhs);
        for(row_type &row : data)
        {
            const row_type copied{row};
            for(size_t j{rhs.rows()}; j--;) row[j] = (copied * rhs[j]).sum();
        }
        return *this;
    }

    matrix operator+(const matrix &rhs) const { return matrix{*this} += rhs; }

    matrix operator-(const matrix &rhs) const { return matrix{*this} -= rhs; }

    matrix operator*(const matrix &rhs) const { return matrix{*this} *= rhs; }

    friend row_type &operator*=(row_type &lhs, const matrix &rhs) { return lhs = lhs * rhs; }

    friend row_type operator*(row_type &lhs, const matrix &rhs)
    {
        assert(lhs.size() == rhs.rows());
        row_type res(rhs.columns());
        for(size_t k{lhs.size()}; k--;)
            for(size_t j{rhs.columns()}; j--;)
                res[j] += lhs[k] * rhs[k][j];
        return res;
    }

    static matrix identity(const size_t _n)
    {
        matrix ide(_n);
        for(size_t i{_n}; i--;) ide[i][i] = identity_wrapper();
        return ide;
    }

    friend matrix pow(matrix mat, unsigned long long exp)
    {
        matrix res{identity(mat.rows())};
        for(assert(mat.rows() == mat.columns()); exp; mat *= mat, exp >>= 1) if(exp & 1) res *= mat;
        return res;
    }
}; // class matrix

main()
{
    ios::sync_with_stdio(false), cin.tie(nullptr);

    using mint=modint<1000000007>;

    int n,w; long long k; cin>>n>>w>>k;
    vector<int> a(n);
    for(auto &e:a) cin>>e;

    mint dp[200];
    dp[0]=1;
    for(int i=0;i<100;++i)
    {
        for(int e:a)
        {
            dp[i+e]+=dp[i];
        }
    }

    mint p=dp[w];
    mint q=dp[w*2]-p*p;

    matrix<mint> res({{1,0},{0,1}});
    matrix<mint> coef({{p,q},{1,0}});

    while(k)
    {
        if(k&1)
        {
            res*=coef;
        }
        coef*=coef;
        k>>=1;
    }

    cout << res[1][0]*p+res[1][1] << "\n";
}