#include <iostream>
#include <fstream>
#include <sstream>
#include <cctype>
#include <vector>



using namespace std;

int main(){

    /*
    int x;
    while(1){
        cout << "Iveskite skaiciu: ";
        cin >> x;
        char c = cin.get();
        if(cin.fail() || (c != '\n')){
            cout << "Blogas ivedimas!" << endl;
            cin.clear();
            cin.ignore(1024, '\n');

        } else
            break;
    }
    // x yra geras
    cout << "Tu ivedei " << x << endl;
    */

    /*
    double x;
    int y;
    while(1){
        cout << "Iveskite du skaicius (double ir int): ";
        cin >> x;
        cin >> y;
        char c = cin.get();
        if(cin.fail() || (c != '\n')){
            cout << "Blogas ivedimas!" << endl;
            cin.clear();
            cin.ignore(1024, '\n');

        } else
            break;
    }
    // x ir y yra geri
    cout << "Tu ivedei " << x << " ir " << y << endl;
    */

    /*
    vector<int> v;
    while(1){
        string line;
        cout << "Ivesk skaiciu sarasa: ";
        getline(cin, line);

        stringstream ss;
        ss << line;
        int klaida = 0;
        while(1){
            int x;
            ss >> x;
            if(!ss.fail()){
                v.push_back(x);
            } else {
                if(!ss.eof())
                    klaida = 1;
                break;
            }
        }
        if(klaida == 0) // && v.size() % 2 == 1)
            break;
        else {
            cout << "Blogas ivedimas" << endl;
            v.clear();
        }
    }
    // skaiciu sarasas yra geras
    for(int i = 0; i < v.size(); i++)
        cout << v[i] << " ";
    cout << endl;
    */
    return 0;

}