#include<bits/stdc++.h>
using namespace std;
#define ALL(x) begin(x),end(x)
#define rep(i,n) for(int i=0;i<(n);i++)
#define debug(v) cout<<#v<<":";for(auto x:v){cout<<x<<' ';}cout<<endl;
#define mod 1000000007
using ll=long long;
const int INF=1000000000;
const ll LINF=1001002003004005006ll;
int dx[]={1,0,-1,0},dy[]={0,1,0,-1};
// ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
template<class T>bool chmax(T &a,const T &b){if(a<b){a=b;return true;}return false;}
template<class T>bool chmin(T &a,const T &b){if(b<a){a=b;return true;}return false;}

struct IOSetup{
    IOSetup(){
        cin.tie(0);
        ios::sync_with_stdio(0);
        cout<<fixed<<setprecision(12);
    }
} iosetup;
 
template<typename T>
ostream &operator<<(ostream &os,const vector<T>&v){
    for(int i=0;i<(int)v.size();i++) os<<v[i]<<(i+1==(int)v.size()?"":" ");
    return os;
}
template<typename T>
istream &operator>>(istream &is,vector<T>&v){
    for(T &x:v)is>>x;
    return is;
}


signed main(){
    ll n,k;cin>>n>>k;
    vector<ll> a(k);
    cin>>a;

    auto exp=[&](){
        vector<bool> check(n+10,true);
        rep(i,k) check[a[i]]=false;

        for(int i=1;i<=n;i++){
            cout<<(check[i]?"o":"x")<<" ";
        }
        cout<<endl;

        for(int i=n;i>0;i--){
            rep(j,6){
                int x=j+1;
                if(!check[i+x] and !check[i+7-x]){
                    check[i]=false;
                }
            }
        }
        for(int i=1;i<=n;i++){
            cout<<(check[i]?"o":"x")<<" ";
        }
        cout<<endl;
    };

    // exp();

    rep(i,k){
        rep(j,6){
            int x=j+1;
            int y=7-x;
            if(y<x) break;
            if(count(ALL(a),a[i]-x+y)){
                if(a[i]>20){
                    cout<<"No"<<endl;
                    return 0;
                }
            }
        }
    }

    vector<bool> check(40,true);
    rep(i,k){
        if(a[i]<=30) check[a[i]]=false;
    }

    for(int i=30;i>0;i--){
        rep(j,6){
            int x=j+1;
            int y=7-x;
            if(!check[i+x] and !check[i+y]) check[i]=false;
        }
    }
    if(check[1]) cout<<"Yes"<<endl;
    else cout<<"No"<<endl;
    return 0;
}