Tortuga telemaco103

import turtle as t
import random

tim = t.Turtle()
t.colormode(255)

color_list = [(4, 31, 91), (66, 11, 35), (201, 182, 10), (221, 67, 11), (204, 12, 55), (3, 67, 14), (246, 77, 15),
              (208, 211, 7), (227, 49, 97), (5, 97, 17), (182, 45, 81), (210, 134, 150), (236, 195, 200),
              (149, 163, 183), (199, 216, 196), (73, 92, 125), (238, 165, 175), (145, 181, 142), (220, 181, 170),
              (58, 117, 62), (21, 53, 115), (177, 205, 168), (253, 3, 80), (166, 30, 5), (93, 150, 96), (106, 124, 158)]



tim.hideturtle()
tim.penup()

# Parameters
Rows = 11
Columns = 10
Pos_x_init = -250.00
Pos_y_init = -200.00
x_step = 50.00
y_step = 50.00


for row in range(Rows):
    tim.setposition(Pos_x_init, Pos_y_init + y_step*row)
    for column in range(Columns):
        tim.speed(0)
        tim.dot(20,random.choice(color_list))
        tim.forward(x_step)


tim.hideturtle()
screen = t.Screen()
screen.exitonclick()