#include <bits/stdc++.h>
using namespace std;
int main() {
    // star graph
    int n, m;
    cin >> n >> m;
    for (int i = 0; i < m; i++) {
        int u, v;
        cin >> u >> v;
    }
    cout << 3 << '\n';
    for (int i = 0; i < n; i++) cout << 0 << ' ';
    cout << '\n';
    cout << 1 << ' ' << 1 << ' ';
    for (int i = 2; i < n; i++) cout << 0 << ' ';
    cout << '\n';
    for (int i = 0; i < n; i++) cout << 0 << ' ';
    cout << '\n';
    return 0;
}
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