class P04_long_soln {
	
	public static void main(String[] args)
	{
		//int type can hold 2123123123.  However, 2123123123+2123123123 is too big for int.
		System.out.println(2123123123); //Output is OK: 2123123123
		
		long x;
		x = 2123123123L + 2123123123; //Note: need to apply "L"
		System.out.println(x); //Output is OK: 4246246246 
	}
}