The following code contains $5$ errors. Identify the line number where the error occurs and provide a brief explanation of how to fix it$.$ You do not need to add any additional lines or provide updated code.

from tkinter import Tk

from time import sleep

from random import randint as rand

window $=Tk()$

window.title$("$The window"$)$

canvas $=$ Canvas $($window$,$ width $=400,$ height $=400,bg=$ black"$)$

num$\_$squares $=$ input$("$How many squares?"$)$

square $=[]$

colour $=["$red$",$ "yellow", "green", "blue"$]$

for $i$ in range$($num$\_$squares$)$:

c$\_$col $=$ rand $(0,3)$

$x=$rand$(10,300)$

$y=$rand$(10,300)$

$xy=(x,y,x+10,y+10)$

square.append$($canvas$.$create$\_$rectangle $($:$(xy,$fill$=$colour$[c_{c}ol])\}$

canvas.pack

$x=[1]**$ num$\_$squares

$y=[1]**$ num$\_$squares

while True:

for $i$ in range$($num$\_$squares$)$:

pos $=$ canvas.coords$($square$[$i$])$

if pos $[3]>400$ or pos $[1]<mtext\; id="EditorElement\_1074643"></mtext><mn\; id="EditorElement\_1074644">0</mn>$ :

$y[i]=-y[i]$

if pos $[0]<mtext\; id="EditorElement\_1074502"></mtext><mn\; id="EditorElement\_1074503">0</mn>$ or pos $[2]>400$:

$x[i]=-x[i]$

for $j$ in range$($num$\_$squares$)$

if $i=j$ : continue

pos $2=$ canvas.coords $($square $[$j$])$

if pos$[0]$ pos$2[2]$ and pos$[2]>$ pos$2[0]$ and pos$[1]$ pos$2[3]$ and pos$[3]>$ pos$2[1]$:

$y[i]=-y[i]$

$x[i]=-x[i]$

$y[j]=-y[j]$

$x[j]=-x[j]$

canvas,move$($square $[$i$],x[i],y[i]$

sleep$(0\mathrm{.}002)$

window. update$()$

window mainloop$()$