using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
		var packageSize = "4/8.75LB";
    	var result = Regex.Split(packageSize, @"(\d)(?=\D*$)");
        foreach (var s in result)
        	Console.WriteLine(s);
	}
}