Write a Java program that processes a sequence of integers separated by spaces and displays the run length encoded output.

If the user enters an empty sequence, do not output anything. Assume the entered sequence is in the correct format and contains only integers.

Example input:

Enter a sequence of integers separated by spaces:

> 1 1 1 1 2 2 2 4 6 6 6 6 6 1 1

Run length encoder output:

> 1 4 2 3 4 1 6 5 1 2

Enter a sequence of integers separated by spaces:

> 3 3 -5 -5 -5 -5 2 4 4 4 0

Run length encoder output:

> 3 2 -5 4 2 1 4 3 0 1