from operator import itemgetter
from itertools import *
from bisect import *
from collections import *
from heapq import *
import sys

sys.setrecursionlimit(10 ** 6)

def II(): return int(sys.stdin.readline())
def MI(): return map(int, sys.stdin.readline().split())
def LI(): return list(map(int, sys.stdin.readline().split()))
def SI(): return sys.stdin.readline()[:-1]
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def LLI1(rows_number): return [LI1() for _ in range(rows_number)]
int1 = lambda x: int(x) - 1
def MI1(): return map(int1, sys.stdin.readline().split())
def LI1(): return list(map(int1, sys.stdin.readline().split()))
p2D = lambda x: print(*x, sep="\n")
dij = [(1, 0), (0, 1), (-1, 0), (0, -1)]

def main():
    n,m=MI()
    n1=n//2
    n0=n-n//2
    if m<n-1 or m>n0*n1:
        print("NO")
        exit()

    uv=[]
    for v in range(n0+1,n+1):uv+=[(v-n0,v),(v-n0+1,v)]
    #print(uv)

    cnt=n-1
    for v in range(n0 + 1, n + 1):
        for u in range(1,n0+1):
            if cnt==m:
                print("YES")
                print(*list(range(1,n+1)))
                for u,v in uv:print(u,v)
                exit()
            if v-n0==u or v-n0+1==u:continue
            uv.append((u,v))
            cnt+=1

main()