#include <iostream>
#include <fstream>
#include <cstring>

using namespace std;

int main(){
    ifstream fin;
    ofstream fout;
    fin.open("in.txt", ios::in);
    fout.open("out.txt", ios::out);
    char n, a[10000],str[100000];
    int c = 0, i = 0;
    fin.getline(str,10000);
    for (int j=0;j<strlen(str);j++){
        n=str[j];
        if (n == 'e'&&c == 0){
            c = 1;
            a[i++] = n;
        }
        else{
            if (n == 'n'&&c == 1){
                c = 2;
                a[i++] = n;
            }
            else{
                if (n == 'd'&&c == 2){
                    a[i++] = n;
                    break;
                }
                else{
                    c = 0;
                    a[i++] = n;
                }
            }
        }
    }
    fout << i << endl;
    for (int j = 0; j < i; j++){
        fout << a[j] << ' ';
    }
    fin.close();
    fout.close();
    return 0;
}