#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <map>
using namespace std;

int main()
{
	int N, M; cin >> N >> M;

	int maxE, minE;
	minE = N - 1;
	maxE = 0;
	for (int i = 0; i <= N; i++)maxE += i / 2;

	if (M<minE || M > maxE)cout << "NO" << endl;
	else {
		cout << "YES" << endl;

		vector<int>ans(N);
		int a = 1;
		for (int i = 0; i < N; i += 2)ans[i] = a++;
		for (int i = 1; i < N; i += 2)ans[i] = a++;
		for (int i = 0; i < N; i++) {
			if (i)cout << " ";
			cout << ans[i];
		}
		cout << endl;

		M -= N - 1;
		for (int i = 0; i < N; i++) {
			cout << i + 1 << " " << i + 2 << endl;
			for (int j = i + 3; M && j < N; j++) {
				cout << i + 1 << " " << j + 1 << endl;
				M--;
			}
		}
	}


    return 0;
}