using System;
using System.IO;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
		var line = "2.75423E-19* (var1-5)^(1.17)* (var2)^(1.86)* (var3)^(3.56)";
        var matches = Regex.Matches(line, @"[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?|[-^+*/()]|\w+");
        foreach (Match m in matches)
        		Console.WriteLine(m.Value);
    }
	
}