N, M = [int(x) for x in input().split()]
deg = [0]*N
to = [[]*N for _ in range(N)]
for _ in range(M):
    a, b = [int(x)-1 for x in input().split()]
    to[a].append(b)
    to[b].append(a)
    deg[a] += 1
    deg[b] += 1

from collections import deque
q = deque([v for v in range(N) if deg[v]==1])
ans = 0
while q:
    v = q.popleft()
    if deg[v]==0: continue
    deg[v] -= 1
    for u in to[v]:
        if deg[u]==0: continue
        ans ^= 1
        deg[u] -= 1
        if deg[u]==1: q.append(u)
print('Yes' if ans else 'No')