#line 2 "/Users/noya2/Desktop/Noya2_library/template/template.hpp"
using namespace std;

#include<bits/stdc++.h>
#line 1 "/Users/noya2/Desktop/Noya2_library/template/inout_old.hpp"
namespace noya2 {

template <typename T, typename U>
ostream &operator<<(ostream &os, const pair<T, U> &p){
    os << p.first << " " << p.second;
    return os;
}
template <typename T, typename U>
istream &operator>>(istream &is, pair<T, U> &p){
    is >> p.first >> p.second;
    return is;
}

template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v){
    int s = (int)v.size();
    for (int i = 0; i < s; i++) os << (i ? " " : "") << v[i];
    return os;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &v){
    for (auto &x : v) is >> x;
    return is;
}

void in() {}
template <typename T, class... U>
void in(T &t, U &...u){
    cin >> t;
    in(u...);
}

void out() { cout << "\n"; }
template <typename T, class... U, char sep = ' '>
void out(const T &t, const U &...u){
    cout << t;
    if (sizeof...(u)) cout << sep;
    out(u...);
}

template<typename T>
void out(const vector<vector<T>> &vv){
    int s = (int)vv.size();
    for (int i = 0; i < s; i++) out(vv[i]);
}

struct IoSetup {
    IoSetup(){
        cin.tie(nullptr);
        ios::sync_with_stdio(false);
        cout << fixed << setprecision(15);
        cerr << fixed << setprecision(7);
    }
} iosetup_noya2;

} // namespace noya2
#line 1 "/Users/noya2/Desktop/Noya2_library/template/const.hpp"
namespace noya2{

const int iinf = 1'000'000'007;
const long long linf = 2'000'000'000'000'000'000LL;
const long long mod998 =  998244353;
const long long mod107 = 1000000007;
const long double pi = 3.14159265358979323;
const vector<int> dx = {0,1,0,-1,1,1,-1,-1};
const vector<int> dy = {1,0,-1,0,1,-1,-1,1};
const string ALP = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
const string alp = "abcdefghijklmnopqrstuvwxyz";
const string NUM = "0123456789";

void yes(){ cout << "Yes\n"; }
void no(){ cout << "No\n"; }
void YES(){ cout << "YES\n"; }
void NO(){ cout << "NO\n"; }
void yn(bool t){ t ? yes() : no(); }
void YN(bool t){ t ? YES() : NO(); }

} // namespace noya2
#line 2 "/Users/noya2/Desktop/Noya2_library/template/utils.hpp"

#line 6 "/Users/noya2/Desktop/Noya2_library/template/utils.hpp"

namespace noya2{

unsigned long long inner_binary_gcd(unsigned long long a, unsigned long long b){
    if (a == 0 || b == 0) return a + b;
    int n = __builtin_ctzll(a); a >>= n;
    int m = __builtin_ctzll(b); b >>= m;
    while (a != b) {
        int mm = __builtin_ctzll(a - b);
        bool f = a > b;
        unsigned long long c = f ? a : b;
        b = f ? b : a;
        a = (c - b) >> mm;
    }
    return a << std::min(n, m);
}

template<typename T> T gcd_fast(T a, T b){ return static_cast<T>(inner_binary_gcd(std::abs(a),std::abs(b))); }

long long sqrt_fast(long long n) {
    if (n <= 0) return 0;
    long long x = sqrt(n);
    while ((x + 1) * (x + 1) <= n) x++;
    while (x * x > n) x--;
    return x;
}

template<typename T> T floor_div(const T n, const T d) {
    assert(d != 0);
    return n / d - static_cast<T>((n ^ d) < 0 && n % d != 0);
}

template<typename T> T ceil_div(const T n, const T d) {
    assert(d != 0);
    return n / d + static_cast<T>((n ^ d) >= 0 && n % d != 0);
}

template<typename T> void uniq(std::vector<T> &v){
    std::sort(v.begin(),v.end());
    v.erase(unique(v.begin(),v.end()),v.end());
}

template <typename T, typename U> inline bool chmin(T &x, U y) { return (y < x) ? (x = y, true) : false; }

template <typename T, typename U> inline bool chmax(T &x, U y) { return (x < y) ? (x = y, true) : false; }

template<typename T> inline bool range(T l, T x, T r){ return l <= x && x < r; }

} // namespace noya2
#line 8 "/Users/noya2/Desktop/Noya2_library/template/template.hpp"

#define rep(i,n) for (int i = 0; i < (int)(n); i++)
#define repp(i,m,n) for (int i = (m); i < (int)(n); i++)
#define reb(i,n) for (int i = (int)(n-1); i >= 0; i--)
#define all(v) (v).begin(),(v).end()

using ll = long long;
using ld = long double;
using uint = unsigned int;
using ull = unsigned long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
using pil = pair<int,ll>;
using pli = pair<ll,int>;

namespace noya2{

/*　~ (. _________ . /)　*/

}

using namespace noya2;


#line 2 "c.cpp"

#line 2 "/Users/noya2/Desktop/Noya2_library/math/prime.hpp"

#line 4 "/Users/noya2/Desktop/Noya2_library/math/prime.hpp"
namespace noya2 {

constexpr long long safe_mod(long long x, long long m) {
    x %= m;
    if (x < 0) x += m;
    return x;
}

constexpr long long pow_mod_constexpr(long long x, long long n, int m) {
    if (m == 1) return 0;
    unsigned int _m = (unsigned int)(m);
    unsigned long long r = 1;
    unsigned long long y = safe_mod(x, m);
    while (n) {
        if (n & 1) r = (r * y) % _m;
        y = (y * y) % _m;
        n >>= 1;
    }
    return r;
}

constexpr bool is_prime_constexpr(int n) {
    if (n <= 1) return false;
    if (n == 2 || n == 7 || n == 61) return true;
    if (n % 2 == 0) return false;
    long long d = n - 1;
    while (d % 2 == 0) d /= 2;
    constexpr long long bases[3] = {2, 7, 61};
    for (long long a : bases) {
        long long t = d;
        long long y = pow_mod_constexpr(a, t, n);
        while (t != n - 1 && y != 1 && y != n - 1) {
            y = y * y % n;
            t <<= 1;
        }
        if (y != n - 1 && t % 2 == 0) {
            return false;
        }
    }
    return true;
}
template <int n> constexpr bool is_prime_flag = is_prime_constexpr(n);

// {gcd(a, b), a^{-1} mod b}
constexpr std::pair<long long, long long> inv_gcd(long long a, long long b) {
    a = safe_mod(a, b);
    if (a == 0) return {b, 0};
    long long s = b, t = a;
    long long m0 = 0, m1 = 1;
    while (t) {
        long long u = s / t;
        s -= t * u;
        m0 -= m1 * u; 
        auto tmp = s;
        s = t;
        t = tmp;
        tmp = m0;
        m0 = m1;
        m1 = tmp;
    }
    if (m0 < 0) m0 += b / s;
    return {s, m0};
}

constexpr int primitive_root_constexpr(int m) {
    if (m == 2) return 1;
    if (m == 167772161) return 3;
    if (m == 469762049) return 3;
    if (m == 754974721) return 11;
    if (m == 998244353) return 3;
    int divs[20] = {};
    divs[0] = 2;
    int cnt = 1;
    int x = (m - 1) / 2;
    while (x % 2 == 0) x /= 2;
    for (int i = 3; (long long)(i)*i <= x; i += 2) {
        if (x % i == 0) {
            divs[cnt++] = i;
            while (x % i == 0) {
                x /= i;
            }
        }
    }
    if (x > 1) {
        divs[cnt++] = x;
    }
    for (int g = 2;; g++) {
        bool ok = true;
        for (int i = 0; i < cnt; i++) {
            if (pow_mod_constexpr(g, (m - 1) / divs[i], m) == 1) {
                ok = false;
                break;
            }
        }
        if (ok) return g;
    }
}
template <int m> constexpr int primitive_root_flag = primitive_root_constexpr(m);

// constexpr long long primitive_root_constexpr(long long m){
//     if (m == (1LL << 47) - (1LL << 24) + 1) return 3;
//     return primitive_root_constexpr(static_cast<int>(m));
// }

} // namespace noya2
#line 4 "c.cpp"

#line 2 "/Users/noya2/Desktop/Noya2_library/utility/modint_64bit.hpp"

#line 4 "/Users/noya2/Desktop/Noya2_library/utility/modint_64bit.hpp"

namespace noya2{

/*

see : https://nyaannyaan.github.io/library/modint/arbitrary-montgomery-modint.hpp

*/

template <typename Int, typename UInt, typename Long, typename ULong, int id>
struct ArbitraryLazyMontgomeryModIntBase {
    using mint = ArbitraryLazyMontgomeryModIntBase;

    inline static UInt _mod;
    inline static UInt r;
    inline static UInt n2;
    static constexpr int bit_length = sizeof(UInt) * 8;

    static UInt get_r(){
        UInt ret = _mod;
        while (_mod * ret != 1) ret *= UInt(2) - _mod * ret;
        return ret;
    }
    static void set_mod(UInt m){
        assert(m < (UInt(1u) << (bit_length - 2)));
        assert((m & 1) == 1);
        _mod = m, n2 = -ULong(m) % m, r = get_r();
    }
    UInt a;

    ArbitraryLazyMontgomeryModIntBase() : a(0) {}
    ArbitraryLazyMontgomeryModIntBase(const Long &b) : a(reduce(ULong(b % _mod + _mod) * n2)) {}

    static UInt reduce(const ULong &b){
        return (b + ULong(UInt(b) * UInt(-r)) * _mod) >> bit_length;
    }

    mint &operator+=(const mint &b){
        if (Int(a += b.a - 2 * _mod) < 0) a += 2 * _mod;
        return *this;
    }
    mint &operator-=(const mint &b){
        if (Int(a -= b.a) < 0) a += 2 * _mod;
        return *this;
    }
    mint &operator*=(const mint &b){
        a = reduce(ULong(a) * b.a);
        return *this;
    }
    mint &operator/=(const mint &b){
        *this *= b.inv();
        return *this;
    }

    mint operator+(const mint &b) const { return mint(*this) += b; }
    mint operator-(const mint &b) const { return mint(*this) -= b; }
    mint operator*(const mint &b) const { return mint(*this) *= b; }
    mint operator/(const mint &b) const { return mint(*this) /= b; }

    bool operator==(const mint &b) const {
        return (a >= _mod ? a - _mod : a) == (b.a >= _mod ? b.a - _mod : b.a);
    }
    bool operator!=(const mint &b) const {
        return (a >= _mod ? a - _mod : a) != (b.a >= _mod ? b.a - _mod : b.a);
    }
    mint operator-() const { return mint(0) - mint(*this); }
    mint operator+() const { return mint(*this); }

    mint pow(ULong n) const {
        mint ret(1), mul(*this);
        while (n > 0){
            if (n & 1) ret *= mul;
            mul *= mul, n >>= 1;
        }
        return ret;
    }

    friend std::ostream &operator<<(std::ostream &os, const mint &b){
        return os << b.val();
    }

    friend std::istream &operator>>(std::istream &is, mint &b){
        Long t;
        is >> t;
        b = ArbitraryLazyMontgomeryModIntBase(t);
        return (is);
    }

    mint inv() const {
        Int x = val(), y = mod(), u = 1, v = 0;
        while (y > 0){
            Int t = x / y;
            std::swap(x -= t * y, y);
            std::swap(u -= t * v, v);
        }
        return mint{u};
    }

    UInt val() const {
        UInt ret = reduce(a);
        return ret >= _mod ? ret - _mod : ret;
    }

    static UInt mod() { return _mod; }
};

// id に適当な乱数を割り当てて使う
template <int id>
using ArbitraryLazyMontgomeryModInt = ArbitraryLazyMontgomeryModIntBase<int, unsigned int, long long, unsigned long long, id>;
template <int id>
using ArbitraryLazyMontgomeryModInt64bit = ArbitraryLazyMontgomeryModIntBase<long long, unsigned long long, __int128_t, __uint128_t, id>;

template<int id>
using modint64bit = ArbitraryLazyMontgomeryModInt64bit<id>;

} // namespace noya2
#line 6 "c.cpp"
using mint = modint64bit<628>;

using pml = pair<mint,ll>;

vector<pml> make(vector<pml> a, ll m){
    int n = a.size();
    vector<pml> ret;
    rep(i,n-1){
        if (m == 0) break;
        mint l = a[i].first;
        mint r = a[i+1].first;
        ll cnt = (r - l - a[i].second).val();
        // assert(cnt >= 0);
        if (cnt == 0) continue;
        if (cnt <= m){
            ret.emplace_back(l+a[i].second,cnt);
            m -= cnt;
        }
        else {
            ret.emplace_back(l+a[i].second,m);
            m = 0;
        }
    }
    if (m > 0){
        ret.emplace_back(a.back().first+a.back().second,m);
    }
    return ret;
}

ll access(vector<pml> a, ll x){
    for (auto [l, c] : a){
        if (c <= x){
            x -= c;
            continue;
        }
        return (l + x).val() % mod998;
    }
    abort();
}

void solve(){
    mint::set_mod(mod998*3);
    int n, q; in(n,q);
    assert(n <= 3000 && q <= 3000);
    vector<pml> a;
    {
        vector<int> b(n); in(b);
        uniq(b);
        n = b.size();
        a.reserve(n);
        rep(i,n){
            a.emplace_back(b[i],1);
        }
    }
    auto query = [&](ll k, ll m){
        a = make(a, m);
        k--;
        // out(a);
        if (k == 0) return ;
        auto b = make(a, m);
        if (b.size()+1u == a.size()){
            a = make(b, m);
            k--;
            swap(a, b);
            // out("?");
        }
        if (k == 0) return ;
        int asz = a.size();
        int bsz = b.size();
        assert(bsz == asz);
        ll krem = k % (asz + bsz);
        ll kquo = k / (asz + bsz);
        // out(a);
        // out(b);
        vector<pml> na(a.begin()+krem/2,a.end());
        rep(i,krem/2){
            auto [l, c] = a[i];
            na.emplace_back(l+2*m,c);
        }
        if (krem % 2 != 0){
            na = make(na, m);
            // out("?");
        }
        swap(a, na);
        mint geta = mint(kquo) * mint(2*m);
        for (auto &[l, c] : a){
            l += geta;
        }
    };
    while (q--){
        ll k, x, m; in(k,x,m); x--;
        query(k,m);
        // out(a);
        out(access(a,x));
    }
}

int main(){
    int t = 1; //in(t);
    while (t--) { solve(); }
}