#include <iostream>
#include <vector>

using namespace std;

void print(vector<vector<double> > a) {
	for (int i = 0; i < a.size(); i++) {
		for (int j = 0; j < a[i].size(); j++) {
			printf("%.3f ", a[i][j]);
		}
		cout << '\n';
	}
	cout << '\n';
}

vector<double> Gauss(vector<vector<double> > a) {
	vector<double> res(a.size());

	// Приведение к верхнетреугольному виду
	for (int i = 0; i < a.size(); i++) {
		if (a[i][i] == 0) {
			for (int j = i + 1; j < a.size(); j++) {
				if (a[i][j] != 0) {
					swap(a[i], a[j]);
					break;
				}
			}
		}
		for (int q = i + 1; q < a.size(); q++) {
			double k = a[q][i] / a[i][i];
			for (int j = 0; j < a[i].size(); j++) {
				a[q][j] -= a[i][j] * k;
			}
		}
		print(a);
	}
	// Решение СЛАУ
	for (int i = a.size() - 1; i >= 0; i--) {
		if (a[i][i] == 0) {
			vector<double> t;
			return t;
		}
		double x = a[i][a[i].size() - 1] / a[i][i];
		for (int j = i - 1; j >= 0; j--) {
			a[j][a[j].size() - 1] -= a[j][i] * x;
		}
		res[i] = x;
	}

	return res;
}

vector<vector<double> > trans(vector<vector<double> > a) {
	vector<vector<double> > b(a.size(), vector<double>(a[0].size(), 0));
	for (int i = 0; i < a.size(); i++) {
		b[i][i] = 1;
	}
	int n = a.size();
	for (int i = 0; i < a.size(); i++) {
		double k = a[i][i];
		for (int j = 0; j < n; j++) {
			a[i][j] = a[i][j] / k;
			b[i][j] = b[i][j] / k;
		}
		for (int q = i + 1; q < a.size(); q++) {
			double k = a[q][i] / a[i][i];
			for (int j = 0; j < a[i].size(); j++) {
				a[q][j] -= a[i][j] * k;
				b[q][j] -= b[i][j] * k;
			}
		}
	}

	for (int i = 1; i < n; i++) {
		for (int q = i - 1; q >= 0; q--) {
			double k = a[q][i] / a[i][i];
			for (int j = 0; j < a[i].size(); j++) {
				a[q][j] -= a[i][j] * k;
				b[q][j] -= b[i][j] * k;
			}
		}
	}

	return b;
}

int main() {
	int n, m;
	cin >> n >> m;
	vector<vector<double> > a(n, vector<double>(m));

	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			cin >> a[i][j];
		}
	}

	vector<double> ans = Gauss(a);
	if (ans.size() == 0) {
		cout << "No solution!";
	}
	else {
		for (int i = 0; i < ans.size(); i++) {
			printf("x%d = %.3f\n", i, ans[i]);
		}
	}
}