#include <iostream>
#include <string>
#include <stdio.h>
#include <fstream>
#include <cctype>
using namespace std;

void fun(string s)
{
    cout << "start: " << s << "\n";
    long mas = 0;
    cout << "f_s " << isdigit(s[0]) << "> " << s[0] << " -> ";
    if (isdigit(s[0]))
    {
        mas = int(s[0]) - 48;
        cout << "set " << mas;
    }
    else cout << "none";
    cout << "\n";

    bool now, last;
    for (int i = 1; i < s.length(); i++)
    {
        now = isdigit(s[i]);
        last = isdigit(s[i - 1]);
        cout << "0: " << (int)now << " " << (int)last << "> char: " << s[i] << "\n";

        if (now && !last)
        {
            mas = int(s[i]) - 48;
            cout << "1> n & !l -> " << mas << "\n";
        }

        if (now && last)
        {
            mas = mas * 10 + int(s[i]) - 48;
            cout << "2> n & l -> " << mas << "\n";
        }

        if (!now && last)
        {
            cout << "3> !n & l -> " << mas << "\n";
            if (mas % 2 == 0)
                cout << mas << ' ';
        }

        if (now && (i = s.length()-1))
        {
            cout << "4> n & length -> " << mas << "\n";
            if (mas % 2 == 0)
                cout << mas << ' ';
        }
    }
    cout << endl;
}

int main()
{
    string s;
    ifstream in("input.txt");
    while (in.peek() != EOF)
    {
        getline(in, s);
        fun(s);
    }
    in.close();
    //system("pause");
    return 0;

}