for (int i = 0; i < {{size_n}}; ++i) {
for (int j = 0; j < {{size_m}}; ++j) { std::cout << {{matrix_name}}[i*{{size_m}} + j] << " "; } std::cout << std::endl;
}
for (int i = 0; i < {{size_n}}; ++i) {
for (int j = 0; j < {{size_m}}; ++j) { std::cout << {{matrix_name}}[i*{{size_m}} + j] << " "; } std::cout << std::endl;
}