#include<stdio.h>
int a[10004], b[10004];
int ji[5003];
int main()
{
	int n, m;
	scanf("%d %d", &n, &m);
	int i, j;
	for (i = 0; i < m; i++)
	{
		scanf("%d %d", &a[i], &b[i]);
		a[i]--;
		b[i]--;
		a[i + m] = b[i];
		b[i + m] = a[i];
	}
	for (i = 0; i < n; i++)
		ji[i] = 0;
	for (i = 0; i < 2 * m; i++)
		ji[a[i]]++;
	int cnt = 0;
	for (;;)
	{
		for (j = -1, i = 0; i < n; i++)
			if (ji[i] == 1)
				j = i;
		if (j < 0)
			break;
		cnt++;
		for (i = 0; i < 2 * m; i++)
			if (a[i] == j)
				ji[b[i]]--;
		ji[j]--;
	}
	if (cnt % 2 > 0)
		printf("Yes\n");
	else
		printf("No\n");
	return 0;
}