This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
vector<vector<int>> graph;
int main(){
int n, m;
cin >> n >> m;
graph.resize(n);
for(int i = 0; i < m; i++){
int x, y;
cin >> x >> y;
graph[x].push_back(y);
graph[y].push_back(x);
}
cout << 3 << '\n';
cout << 1 << ' ' << 1;
for(int i = 2; i < n; i++){
cout << 1 << ' ';
}
cout << '\n';
cout << 0 << ' ' << 0;
for(int i = 2; i < n; i++){
cout << 1 << ' ';
}
cout << '\n';
cout << 1 << ' ' << 1;
for(int i = 2; i < n; i++){
cout << 1 << ' ';
}
}
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