#include <iostream>
#include <sstream>

using namespace std;

int findLength(string &str);
void initializeArray(int arr[], string &str);

int main()
{
    cout << "enter the firs arr: ";
    string str;
    getline(cin, str);
    int arr1[findLength(str)] = {};

    initializeArray(arr1, str);

    cout << "enter the second arr: ";
    getline(cin, str);
    int arr2[findLength(str)] = {};

    initializeArray(arr2, str);

    cout << "arr1 elements:" << endl;
    for(int e : arr1)
        cout << e << endl;

    cout << "arr2 elements:" << endl;
    for(int e : arr2)
        cout << e << endl;
}

int findLength(string &str)
{
    int n = 0;

    for(char e : str)
        if(e == ' ')
            n++;

    return ++n;
}

void initializeArray(int arr[], string &str)
{
    bool sInput = false;
    int index = 0;

    while(!sInput)
    {
        istringstream inputStream(str);

        ostringstream outputStream;

        sInput = true;
        while(inputStream)
        {
            if(inputStream >> arr[index])
                index++;
            else
            {
                inputStream.clear();
                string unparsed;
                inputStream >> unparsed;

                if(!unparsed.empty())
                {
                    outputStream << unparsed << " ";
                    sInput = false;
                }
            }
        }

        if(!sInput)
        {
            cout << "unparsed numbers: " << outputStream.str() << "enter again: ";

            getline(cin, str);
        }
    }
}