int main()
{
	int input[20];
	int i(0);
 
 
	cout << "input some numbers: \n";
 
	while(i < 20)
	{
		cin >> input[i];
 
		if (input[i] == '\n')
			exit(1);
		i++;
 
	}
	cout << input[0] << input[1] << endl;
 
return 0;
}