/**
 *   @FileName	a.cpp
 *   @Author	kanpurin
 *   @Created	2020.06.06 17:30:27
**/

#include "bits/stdc++.h" 
using namespace std; 
typedef long long ll;

int main() {
    int n, m;
    cin >> n >> m;
    int k = n / 2;
    if (n - 1 > m || (ll)k * (n - k) < m) {
        puts("NO");
        return 0;
    }
    puts("YES");
    for (int i = 0; i < n; i++) {
        cout << i + 1 << " ";
    }
    cout << endl;
    for (int i = 0; i < k - 1; i++) {
        cout << i + 1 << " " << k + i + 1 << endl;
        cout << i + 1 << " " << k + i + 2 << endl;
        m -= 2;
    }
    cout << k << " " << k + k << endl;
    m--;
    if (n & 1) {
        cout << k << " " << k + k + 1 << endl;
        m--;
    }
    for (int i = 0; i < k; i++) {
        if (m == 0) break;
        for (int j = k; j < n; j++) {
            if (m == 0) break;
            if (k + i == j || k + i + 1 == j) continue;
            cout << i + 1 << " " << j + 1 << endl;
            m--;
        }
    }
    return 0;
}