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/*
 * @uni_kakurenbo
 * https://github.com/uni-kakurenbo/competitive-programming-workspace
 *
 * CC0 1.0  http://creativecommons.org/publicdomain/zero/1.0/deed.ja
 */
/* #language C++ 20 GCC */

#define PROBLEM "https://judge.yosupo.jp/problem/matrix_product"

#include "sneaky/enforce_int128_enable.hpp"

#include <iostream><--- Include file:  not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include "snippet/fast_io.hpp"
#include "adaptor/io.hpp"
#include "numeric/modular/modint.hpp"
#include "numeric/matrix.hpp"

signed main() {
    uni::i32 n, m, k; input >> n >> m >> k;
    uni::matrix<uni::static_montgomery_modint_64bit<998244353>> a(n, m), b(m, k);
    input >> a >> b;
    print(a * b);
}