# https://yukicoder.me/problems/no/1610
# No.1610 She Loves Me, She Loves Me Not, ...

n, m = map(int, input().split())
AB = [list(map(int, input().split())) for _ in range(m)]

graph = [[] for _ in range(n)]
for a, b in AB:
    a -= 1
    b -= 1
    graph[a].append(b)
    graph[b].append(a)

cnt = 0
flg = True
while flg:
    flg = False
    for i in range(n):
        if len(graph[i]) == 1:
            flg = True
            cnt += 1
            nxt = graph[i].pop()
            graph[nxt].remove(i)

if cnt % 2 == 1:
    print("Yes")
else:
    print("No")