N,M = map(int,input().split())
Edge = [[] for _ in range(N)]
num = [0 for _ in range(N)]
for _ in range(M):
    a,b = map(int,input().split())
    a-=1
    b-=1
    Edge[a].append(b)
    Edge[b].append(a)
    num[a] += 1
    num[b] += 1
from collections import deque
q = deque()
for i in range(N):
    if num[i] == 1:
        q.append(i)
ans = 0
while q:
    now = q.popleft()
    if num[now] == 1:
        ans += 1
    for next in Edge[now]:
        num[next]-=1
        if num[next] == 1:
            q.append(next)
if ans % 2 == 0:
    print('No')
else:
    print('Yes')