from collections import deque
n,m=map(int,input().split())
g=[[] for _ in range(n)]
v=[0]*n
for _ in range(m):
    a,b=map(int,input().split())
    a-=1;b-=1
    g[a].append(b)
    g[b].append(a)
    v[a]+=1;v[b]+=1
q=deque()
for i in range(n):
    if v[i]==1:
        q.append(i)
cnt=0
while q:
    now=q.popleft()
    if v[now]>=1:
        v[now]-=1
        cnt+=1
        for to in g[now]:
            if v[to]>=1:
                v[to]-=1
                if v[to]==1:
                    q.append(to)
print('Yes' if cnt%2 else 'No')