#include <bits/stdc++.h>
#include <atcoder/all>
using mint = atcoder::modint998244353;
using namespace std;
template< class T >
struct Matrix {
  vector< vector< T > > A;
 
  Matrix() {}
 
  Matrix(size_t n, size_t m) : A(n, vector< T >(m, 0)) {}
 
  Matrix(size_t n) : A(n, vector< T >(n, 0)) {};
 
  size_t height() const {
    return (A.size());
  }
 
  size_t width() const {
    return (A[0].size());
  }
 
  inline const vector< T > &operator[](int k) const {
    return (A.at(k));
  }
 
  inline vector< T > &operator[](int k) {
    return (A.at(k));
  }
 
  static Matrix I(size_t n) {
    Matrix mat(n);
    for(int i = 0; i < n; i++) mat[i][i] = 1;
    return (mat);
  }
  Matrix &operator*=(const Matrix &B) {
    size_t n = height(), m = B.width(), p = width();
    assert(p == B.height());
    vector< vector< T > > C(n, vector< T >(m, 0));
    for(int i = 0; i < n; i++)
      for(int j = 0; j < m; j++)
        for(int k = 0; k < p; k++)
          C[i][j] = (C[i][j] + (*this)[i][k] * B[k][j]);
    A.swap(C);
    return (*this);
  }
  Matrix operator*(const Matrix &B) const {
    return (Matrix(*this) *= B);
  }
  T determinant() {
    Matrix B(*this);
    assert(width() == height());
    T ret = 1;
    for(int i = 0; i < width(); i++) {
      int idx = -1;
      for(int j = i; j < width(); j++) {
        if(B[j][i] != 0) idx = j;
      }
      if(idx == -1) return (0);
      if(i != idx) {
        ret *= -1;
        swap(B[i], B[idx]);
      }
      ret *= B[i][i];
      T vv = B[i][i];
      for(int j = 0; j < width(); j++) {
        B[i][j] /= vv;
      }
      for(int j = i + 1; j < width(); j++) {
        T a = B[j][i];
        for(int k = 0; k < width(); k++) {
          B[j][k] -= B[i][k] * a;
        }
      }
    }
    return (ret);
  }
};
int main(){
	int H, W;
	cin >> H >> W;
	Matrix<mint> A(H, W);
	for (int i = 0; i < H; i++){
		for (int j = 0; j < W; j++){
			int a;
			cin >> a;
			A[i][j] = a;
		}
	}
	Matrix<mint> B(W, H);
	for (int i = 0; i < H; i++){
		for (int j = 0; j < W; j++){
			int b;
			cin >> b;
			B[j][i] = b;
		}
	}
	Matrix<mint> C = A * B;
	for (int i = 0; i < H; i++){
		C[i][i]++;
	}
	cout << (C.determinant() - 1).val() << endl;
}