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

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;

    return 0;

}