#include <bits/stdc++.h>
using namespace std;

bool chk(string &s,int index){
    int i=0;
    int j= index;
    while(j>=i){
        if(s[i] != s[j])
            return false;
        i++;
        j--;
    }

    return true;

}


int main() {
int n;
cin>>n;
string s = to_string(n);
if(chk(s, s.size()-1))
cout<<"Yes";
else{
    int i=s.size()-1;
    for(;i>=0;i--){
        if(s[i]!='0')
            break;
    }
    if(i == s.size()-1)
        cout<<"No";
    else{
        if(chk(s,i))
            cout<<"Yes";
        else
            cout<<"No";
    }
}


}

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
using std::cout;
using std::cin;
using std::endl;
using ll=long long;
using ld=long double;
ll I=1167167167167167167;
ll Q=1e9+7;
#define rep(i,a) for (ll i=0;i<a;i++)
template<class T> using _pq = priority_queue<T, vector<T>, greater<T>>;
template<class T> ll LB(vector<T> &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();}
template<class T> ll UB(vector<T> &v,T a){return upper_bound(v.begin(),v.end(),a)-v.begin();}
template<class T> bool chmin(T &a,const T &b){if(a>b){a=b;return 1;}else return 0;}
template<class T> bool chmax(T &a,const T &b){if(a<b){a=b;return 1;}else return 0;}
template<class T> void So(vector<T> &v) {sort(v.begin(),v.end());}
template<class T> void Sore(vector<T> &v) {sort(v.begin(),v.end(),[](T x,T y){return x>y;});}
template<class T> void print_tate(vector<T> &v) {rep(i,v.size()) cout<<v[i]<<"\n";}
void yneos(bool a){if(a) cout<<"Yes"<<"\n"; else cout<<"No"<<"\n";}

//おちこんだりもしたけれど、私はげんきです。
int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	ll N;
	cin>>N;
	vector<ll> fib={1,1};
	int k=1;
	while(fib[k]+fib[k-1]<=N){
		fib.push_back(fib[k]+fib[k-1]);
		k++;
	}
	int M=fib.size();
	vector<int> c(M);
	for(int i=M-1;i>0;i--){
		while(N>=fib[i]){
			c[i]++;
			N-=fib[i];
		}
	}
	vector<ll> ans;
	for(int i=1;i<M;i++){
		int a=1,b=4;
		if((M-i)%2==1){
			a=2;
			b=3;
		}
		rep(j,c[M-i]) ans.push_back(a);
		ans.push_back(b);
	}
	cout<<ans.size()<<"\n";
	rep(i,ans.size()){
		cout<<ans[i]<<"\n";
	}
	
	/*ll X=0,Y=0;
	rep(i,ans.size()){
		if(ans[i]==1) X++;
		if(ans[i]==2) Y++;
		if(ans[i]==3) X+=Y;
		if(ans[i]==4) Y+=X;
		cout<<X<<" "<<Y<<endl;
	}*/
}
