"""

"""

from sys import stdin
import sys
from collections import deque

N,M = map(int,stdin.readline().split())

lis = [ [] for i in range(N) ]
en = [0] * N

for i in range(M):

    A,B = map(int,stdin.readline().split())
    A -= 1
    B -= 1

    lis[A].append(B)
    lis[B].append(A)

    en[A] += 1
    en[B] += 1

q = deque()

for i in range(N):
    if en[i] == 1:
        q.append(i)

dnum = 0
while q:

    v = q.popleft()
    if en[v] == 1:
        dnum += 1
        en[v] = 0

    for nex in lis[v]:

        en[nex] -= 1

        if en[nex] == 1:
            q.append(nex)

#print (en)

if dnum % 2 == 1:
    print ("Yes")
else:
    print ("No")