import turtle

def main$()$:

turtle.hideturtle$()$

square$(100,0,50,$'blue'$)$

def square$($x$,$ y$,$ width, color$)$:

turtle.penup$()$

turtle.goto$($x$,$ y$)$

turtle.fillcolor$($color$)$

turtle.pendown$()$

turtle.begin$\_$fill$()$

for count in range$(2)$:

turtle.forward$($width$)$

turtle.left$(90)$

turtle.end$\_$fill$()$

if $==\text{'}\text{'}$:

main$()$