Creating Strings

                                #include<bits/stdc++.h>
using namespace std;
#define INF 2147483647
#define INFL 9223372036854775807
#define pii pair<int,int>
#define F first
#define S second
#define mp make_pair
#define pb push_back
#define ll long long
#define ull unsigned long long
#define M 1000000007
#define FASTIO ios_base::sync_with_stdio(false);cin.tie(NULL); cout.tie(NULL);
#define take(x) scanf("%d",&x)
#define DE(x) printf("\ndebug %d\n",x);
#define vout(x) for(int i=0;i<x.size();i++) printf("%d ",x[i]);
#define pie acos(-1)
#define MOD 998244353
 
int main(){
    int t = 1;
    //scanf("%d",&t);
    for(int tc=1;tc<=t;tc++){
        string s;
        cin>>s;
        sort(s.begin(),s.end());
        map<string,int> m;
        int res = 0;
        do{
            if( m[s] == 0 ){
                res++;
            }
        }while(next_permutation(s.begin(),s.end()));
        cout<<res<<endl;
        m.clear();
         do{
            if( m[s] == 0 ){
 
                cout<<s<<endl;
                m[s] = 1;
            }
        }while(next_permutation(s.begin(),s.end()));
    }
}