N,M = map(int,input().split())
lsAB = [set() for i in range(N)]
for i in range(M):
    A,B = map(int,input().split())
    A -= 1
    B -= 1
    lsAB[A].add(B)
    lsAB[B].add(A)

used = [False]*(N)
for i in range(N):
    if used[i]:
        continue
    now = i
    while len(lsAB[now]) == 1:
        used[now] = True
        nex = list(lsAB[now])[0]
        lsAB[now].remove(nex)
        lsAB[nex].remove(now)
        now = nex
print('Yes' if used.count(True)%2==1 else 'No')