#include <iostream>
#include <algorithm>
#include <iomanip>
#include <vector>
#include <queue>
#include <set>
#include <map>
#include <tuple>
#include <cmath>
#include <numeric>
#include <functional>
#include <cassert>

#define debug_value(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << #x << "=" << x << endl;
#define debug(x) cerr << "line" << __LINE__ << ":<" << __func__ << ">:" << x << endl;

template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }

using namespace std;
typedef long long ll;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout << setprecision(10) << fixed;
    int n, m; cin >> n >> m;
    vector<vector<int>> g(n);
    vector<int> deg(n);
    for(int i = 0; i < m; i++){
        int a, b; cin >> a >> b; a--; b--;
        g[a].push_back(b);
        g[b].push_back(a);
        deg[a]++;
        deg[b]++;
    }
    int cnt = 0;
    function<void(int)> dfs = [&](int v){
        cnt++;
        assert(deg[v] == 1);
        deg[v] = 0;
        for(int to: g[v]){
            deg[to]--;
            if(deg[to] == 1) dfs(to);
        }
    };
    for(int i = 0; i < n; i++){
        if(deg[i] == 1) dfs(i);
    }
    if(cnt%2 == 0){
        cout << "No" << endl;
    }else{
        cout << "Yes" << endl;
    }
}