#include <bits/stdc++.h>
#define FASTIO
using namespace std;

using ll = long long;
using Vi = std::vector<int>;
using Vl = std::vector<ll>;
using Pii = std::pair<int, int>;
using Pll = std::pair<ll, ll>;

constexpr int I_INF = std::numeric_limits<int>::max();
constexpr ll L_INF = std::numeric_limits<ll>::max();

template <typename T1, typename T2>
inline bool chmin(T1& a, const T2& b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template <typename T1, typename T2>
inline bool chmax(T1& a, const T2& b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

class Prints {
private:
    class __Prints {
    public:
        __Prints(const char* sep, const char* term) : sep(sep), term(term) {}
        template <class... Args>
        void operator()(const Args&... args) const { print(args...); }
        template <typename T>
        void pvec(const T& vec, size_t sz) const {
            for (size_t i = 0; i < sz; i++)
                std::cout << vec[i] << (i == sz - 1 ? term : sep);
        }
        template <typename T>
        void pmat(const T& mat, size_t h, size_t w) {
            for (size_t i = 0; i < h; i++)
                for (size_t j = 0; j < w; j++)
                    std::cout << mat[i][j] << (j == w - 1 ? term : sep);
        }

    private:
        const char *sep, *term;
        void print() const { std::cout << term; }
        void print_rest() const { std::cout << term; }
        template <class T, class... Tail>
        void print(const T& head, const Tail&... tail) const { std::cout << head, print_rest(tail...); }
        template <class T, class... Tail>
        void print_rest(const T& head, const Tail&... tail) const { std::cout << sep << head, print_rest(tail...); }
    };

public:
    Prints() {}
    __Prints operator()(const char* sep = " ", const char* term = "\n") const { return __Prints(sep, term); }
};

Prints prints;

//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

template <class T, class E, class F, class G, class H, class P>
class LazySegmentTree {
private:
    const F f;
    const G g;
    const H h;
    const P p;
    const T tid;
    const E eid;
    std::vector<T> vec;
    std::vector<E> lazy;
    int sz;

public:
    explicit LazySegmentTree(
        int n, F f, G g, H h, P p, T tid, E eid) noexcept
        : f(f), g(g), h(h), p(p), tid(tid), eid(eid) {
        sz = 1;
        while (sz < n) sz <<= 1;
        vec.assign(sz * 2 - 1, tid);
        lazy.assign(sz * 2 - 1, eid);
    }
    T& operator[](int idx) noexcept {
        return vec[sz - 1 + idx];
    }
    void set_value(int idx, T val) noexcept {
        vec[sz - 1 + idx] = val;
    }
    void build() noexcept {
        for (int i = sz - 2; i >= 0; i--) {
            vec[i] = f(vec[i * 2 + 1], vec[i * 2 + 2]);
        }
    }
    void eval(int k, int l, int r) noexcept {
        if (lazy[k] == eid) return;
        if (r - l > 1) {
            lazy[k * 2 + 1] = h(lazy[k * 2 + 1], lazy[k]);
            lazy[k * 2 + 2] = h(lazy[k * 2 + 2], lazy[k]);
        }
        vec[k] = g(vec[k], p(lazy[k], r - l));
        lazy[k] = eid;
    }
    void update(int a, int b, E x) noexcept {
        _update(a, b, x, 0, 0, sz);
    }
    T query(int a, int b) noexcept {
        return _query(a, b, 0, 0, sz);
    }

private:
    T _update(int a, int b, E x, int k, int l, int r) noexcept {
        eval(k, l, r);
        if (b <= l || r <= a) return vec[k];
        if (a <= l && r <= b) {
            lazy[k] = h(lazy[k], x);
            return g(vec[k], p(lazy[k], r - l));
        }
        else {
            T t1 = _update(a, b, x, k * 2 + 1, l, (l + r) >> 1);
            T t2 = _update(a, b, x, k * 2 + 2, (l + r) >> 1, r);
            return vec[k] = f(t1, t2);
        }
    }
    T _query(int a, int b, int k, int l, int r) noexcept {
        if (b <= l || r <= a) return tid;
        eval(k, l, r);
        if (a <= l && r <= b) {
            return vec[k];
        }
        else {
            T t1 = _query(a, b, k * 2 + 1, l, (l + r) >> 1);
            T t2 = _query(a, b, k * 2 + 2, (l + r) >> 1, r);
            return f(t1, t2);
        }
    }
};

template <std::int_fast64_t Modulus>
class ModInt {
    using i64 = std::int_fast64_t;

private:
    i64 m_value;

public:
    constexpr ModInt(const i64 x = 0) noexcept : m_value(x % Modulus) {
        if (m_value < 0) m_value += Modulus;
    }

    constexpr i64 const& value() const noexcept { return m_value; }

    constexpr ModInt& operator+=(const ModInt rhs) noexcept {
        m_value += rhs.m_value;
        if (m_value >= Modulus) {
            m_value -= Modulus;
        }
        return *this;
    }
    constexpr ModInt& operator-=(const ModInt rhs) noexcept {
        if (m_value < rhs.m_value) {
            m_value += Modulus;
        }
        m_value -= rhs.m_value;
        return *this;
    }
    constexpr ModInt& operator*=(const ModInt rhs) noexcept {
        m_value = m_value * rhs.m_value % Modulus;
        return *this;
    }
    constexpr ModInt& operator/=(ModInt rhs) noexcept {
        *this *= rhs.inv();
        return *this;
    }

    constexpr ModInt& operator++() noexcept {
        *this += 1;
        return *this;
    }
    constexpr ModInt operator++(int) noexcept {
        ModInt res = *this;
        *this += 1;
        return res;
    }
    constexpr ModInt& operator--() noexcept {
        *this -= 1;
        return *this;
    }
    constexpr ModInt operator--(int) noexcept {
        ModInt res = *this;
        *this -= 1;
        return res;
    }

    constexpr ModInt inv() const noexcept {
        i64 q = m_value;
        i64 b = Modulus, u = 1, v = 0;
        while (b) {
            i64 t = q / b;
            q -= t * b;
            std::swap(q, b);
            u -= t * v;
            std::swap(u, v);
        }
        u %= Modulus;
        if (u < 0) u += Modulus;
        return u;
    }

    constexpr ModInt pow(i64 k) const noexcept {
        ModInt res = 1;
        ModInt tmp;
        if (k < 0) {
            tmp = (*this).inv();
            k = -k;
        }
        else {
            tmp = *this;
        }
        for (; k > 0; k >>= 1) {
            if (k & 1) res *= tmp;
            tmp *= tmp;
        }
        return res;
    }

    friend constexpr ModInt operator+(const ModInt& lhs, const ModInt& rhs) noexcept {
        return ModInt<Modulus>(lhs) += rhs;
    }
    friend constexpr ModInt operator-(const ModInt& lhs, const ModInt& rhs) noexcept {
        return ModInt<Modulus>(lhs) -= rhs;
    }
    friend constexpr ModInt operator*(const ModInt& lhs, const ModInt& rhs) noexcept {
        return ModInt<Modulus>(lhs) *= rhs;
    }
    friend constexpr ModInt operator/(const ModInt& lhs, const ModInt& rhs) noexcept {
        return ModInt<Modulus>(lhs) /= rhs;
    }

    friend constexpr bool operator<(const ModInt& lhs, const ModInt& rhs) noexcept {
        return lhs.m_value < rhs.m_value;
    }
    friend constexpr bool operator>(const ModInt& lhs, const ModInt& rhs) noexcept {
        return lhs.m_value > rhs.m_value;
    }
    friend constexpr bool operator<=(const ModInt& lhs, const ModInt& rhs) noexcept {
        return lhs.m_value <= rhs.m_value;
    }
    friend constexpr bool operator>=(const ModInt& lhs, const ModInt& rhs) noexcept {
        return lhs.m_value >= rhs.m_value;
    }

    friend constexpr bool operator==(const ModInt& lhs, const ModInt& rhs) noexcept {
        return lhs.m_value == rhs.m_value;
    }
    friend constexpr bool operator!=(const ModInt& lhs, const ModInt& rhs) noexcept {
        return lhs.m_value != rhs.m_value;
    }

    friend std::istream& operator>>(std::istream& is, ModInt& rhs) {
        i64 a;
        is >> a;
        rhs = a;
        return is;
    }
    friend std::ostream& operator<<(std::ostream& os, const ModInt& rhs) {
        os << rhs.m_value;
        return os;
    }
};

constexpr long long MOD = 998244353;
using Mint = ModInt<MOD>;

void solve() {
    int N, Q;
    cin >> N >> Q;

    vector<Mint> ps(N), cum(N + 1);
    ps[0] = 1;
    for (ll i = 1; i < N; i++) {
        ps[i] = ps[i - 1] * 10;
    }
    for (ll i = 0; i < N; i++) {
        cum[i + 1] = cum[i] + ps[i];
    }

    using Vt = pair<Mint, int>;
    Vt ve = {0, 1};
    int oe = -1;
    auto opf = [&](Vt a, Vt b) -> Vt {
        auto& [xa, la] = a;
        auto& [xb, lb] = b;
        return {xa + xb * ps[la], la + lb};
    };
    auto opg = [&](Vt a, int b) -> Vt {
        if (b == oe) return a;
        return {b * cum[a.second], a.second};
    };
    auto oph = [](int a, int b) -> int { return b == -1 ? a : b; };
    auto opp = [](int a, int k) -> int { return a; };

    LazySegmentTree seg(N, opf, opg, oph, opp, ve, oe);
    for (ll i = 0; i < N; i++) {
        seg[i] = {1, 1};
    }
    seg.build();

    while (Q--) {
        int l, r, x;
        cin >> l >> r >> x;
        l = N - l;
        r = N - r;
        seg.update(r, l + 1, x);
        prints()(seg.query(0, N + 1).first);
    }
}

//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

int main() {
#ifdef FASTIO
    std::cin.tie(nullptr), std::cout.tie(nullptr);
    std::ios::sync_with_stdio(false);
#endif
#ifdef FILEINPUT
    std::ifstream ifs("./in_out/input.txt");
    std::cin.rdbuf(ifs.rdbuf());
#endif
#ifdef FILEOUTPUT
    std::ofstream ofs("./in_out/output.txt");
    std::cout.rdbuf(ofs.rdbuf());
#endif
    std::cout << std::setprecision(18) << std::fixed;
    solve();
    std::cout << std::flush;
    return 0;
}

Measured memory_bytes: 16676