//#define NDEBUG
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <iostream>
#include <utility>
#include <vector>

namespace n91 {

  using i8 = std::int_fast8_t;
  using i32 = std::int_fast32_t;
  using i64 = std::int_fast64_t;
  using u8 = std::uint_fast8_t;
  using u32 = std::uint_fast32_t;
  using u64 = std::uint_fast64_t;
  using isize = std::ptrdiff_t;
  using usize = std::size_t;

  struct rep {
    struct itr {
      usize i;
      constexpr itr(const usize i) noexcept : i(i) {}
      void operator++() noexcept { ++i; }
      constexpr usize operator*() const noexcept { return i; }
      constexpr bool operator!=(const itr x) const noexcept { return i != x.i; }
    };
    const itr f, l;
    constexpr rep(const usize f, const usize l) noexcept
      : f(std::min(f, l)), l(l) {}
    constexpr auto begin() const noexcept { return f; }
    constexpr auto end() const noexcept { return l; }
  };
  struct revrep {
    struct itr {
      usize i;
      constexpr itr(const usize i) noexcept : i(i) {}
      void operator++() noexcept { --i; }
      constexpr usize operator*() const noexcept { return i; }
      constexpr bool operator!=(const itr x) const noexcept { return i != x.i; }
    };
    const itr f, l;
    constexpr revrep(const usize f, const usize l) noexcept
      : f(l - 1), l(std::min(f, l) - 1) {}
    constexpr auto begin() const noexcept { return f; }
    constexpr auto end() const noexcept { return l; }
  };
  template <class T> auto md_vec(const usize n, const T& value) {
    return std::vector<T>(n, value);
  }
  template <class... Args> auto md_vec(const usize n, Args... args) {
    return std::vector<decltype(md_vec(args...))>(n, md_vec(args...));
  }
  template <class T> constexpr T difference(const T& a, const T& b) noexcept {
    return a < b ? b - a : a - b;
  }
  template <class T> void chmin(T& a, const T& b) noexcept {
    if (b < a)
      a = b;
  }
  template <class T> void chmax(T& a, const T& b) noexcept {
    if (a < b)
      a = b;
  }
  template <class F> class fix_point : private F {
  public:
    explicit constexpr fix_point(F&& f) : F(std::forward<F>(f)) {}

    template <class... Args>
    constexpr decltype(auto) operator()(Args&&... args) const {
      return F::operator()(*this, std::forward<Args>(args)...);
    }
  };
  template <class F> constexpr decltype(auto) make_fix(F&& f) {
    return fix_point<F>(std::forward<F>(f));
  }
  template <class T> T scan() {
    T ret;
    std::cin >> ret;
    return ret;
  }

} // namespace n91
#include <cstdint>

namespace n91 {

  template <std::uint_fast64_t Modulus> class modint {
    using u64 = std::uint_fast64_t;

  public:
    using value_type = u64;

    static constexpr u64 mod = Modulus;

  private:
    static_assert(mod < static_cast<u64>(1) << 32,
      "Modulus must be less than 2**32");

    u64 v;

    constexpr modint& negate() noexcept {
      if (v != 0)
        v = mod - v;
      return *this;
    }

  public:
    constexpr modint(const u64 x = 0) noexcept : v(x% mod) {}
    constexpr u64& value() noexcept { return v; }
    constexpr const u64& value() const noexcept { return v; }
    constexpr modint operator+() const noexcept { return modint(*this); }
    constexpr modint operator-() const noexcept { return modint(*this).negate(); }
    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 modint rhs) noexcept {
      v += rhs.v;
      if (v >= mod)
        v -= mod;
      return *this;
    }
    constexpr modint& operator-=(const modint rhs) noexcept {
      if (v < rhs.v)
        v += mod;
      v -= rhs.v;
      return *this;
    }
    constexpr modint& operator*=(const modint rhs) noexcept {
      v = v * rhs.v % mod;
      return *this;
    }
    constexpr modint& operator/=(modint rhs) noexcept {
      u64 exp = mod - 2;
      while (exp) {
        if (exp % 2 != 0)
          *this *= rhs;
        rhs *= rhs;
        exp /= 2;
      }
      return *this;
    }
    constexpr bool operator==(const modint rhs) const noexcept {
      return v == rhs.v;
    }
    constexpr bool operator!=(const modint rhs) const noexcept {
      return v != rhs.v;
    }
  };
  template <std::uint_fast64_t Modulus>
  constexpr typename modint<Modulus>::u64 modint<Modulus>::mod;

} // namespace n91
#include <functional>
#include <utility>

namespace n91 {

  template <class T, class U, class Operate = std::multiplies<T>>
  constexpr T power(T base, U exp, const Operate& oper = Operate(), T iden = 1) {
    while (exp != 0) {
      if (exp % 2 != 0) {
        iden = oper(iden, base);
      }
      exp /= 2;
      base = oper(base, base);
    }
    return iden;
  }

} // namespace n91

namespace n91 {

  void main_() {
    /*
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    //*/
    using mint = modint<998244353>;
    const usize n = scan<usize>();
    const usize m = scan<usize>();
    std::cout << power(static_cast<mint>(2), n).value() << " ";
    const mint al = power(static_cast<mint>(2), m);
    mint ans = 1;
    mint acc = 1;
    for (const usize i : rep(0, n)) {
      ans *= al - acc;
      acc *= 2;
    }
    std::cout << ans.value() << " ";
    {
      const mint al2 = power(static_cast<mint>(2), n);
      mint ans2 = 1;
      acc = 1;
      for (const usize i : rep(0, n)) {
        ans2 *= al2 - acc;
        acc *= 2;
      }
      std::cout << (ans / ans2).value() << std::endl;
    }
  }

} // namespace n91

int main() {
  n91::main_();


  return 0;
}