N, M = gets.split(" ").map{|s| s.to_i}

V = Array.new(N) {Array.new(N, 0)}

M.times {
	a, b = gets.split(" ").map{|s| s.to_i}
	V[a-1][b-1] = V[b-1][a-1] = 1
}

cnt = 0
change = true
while change do
	change = false
	0.upto(N-1) {|i|
		if V[i].sum == 1 then
			j = V[i].index(1)
			V[i][j] = V[j][i] = 0
			change = true
			cnt += 1
		end
	}
end

puts cnt % 2 == 1 ? "Yes" : "No"