arcmap - How to perform If Statement in Field Calculator of ArcGIS for Desktop?

I have a shapefile containing two numeric fields ("Dist_1" and "Dist_2"). I want a Field Calculation that will populate an additional field ("Result") with one of three answers:

First if Dist_1 is greater than Dist_2 populate Result with 'True' Second if Dist_1 is less than Dist_2 populate with 'False' and Third if Dist_1 and Dist_2 are equal populate with "Equal"

Answer

Parser:

Python

Code block:

def calc(f1,f2):

    if f1 > f2:
        return "True"
    elif f1 < f2:
        return "False"
    else:
        return "Equal"

Expression:

calc(!Dist_1!, !Dist_2!)

Or graphically (you cannot see all of the code block here unfortunately)