N,M=map(int,input().split())

DEG=[0]*N
E=[[] for i in range(N)]

for i in range(M):
    a,b=map(int,input().split())
    a-=1
    b-=1
    E[a].append(b)
    E[b].append(a)
    DEG[a]+=1
    DEG[b]+=1

ANS=0

while True:
    flag=0
    for i in range(N):
        if DEG[i]==1:
            flag=1
            ANS+=1
            DEG[i]-=1
            for to in E[i]:
                DEG[to]-=1

    if flag==0:
        break

if ANS%2==0:
    print("No")
else:
    print("Yes")