import turtle
t=turtle.Turtle()
t.speed(0)
list=["red","green","blue","black","pink","gray","purple","orange","yellow","brown","silver","gold","indigo","cyan"]
n=int(turtle.numinput("边数","输入边数"))
for i in range(9999999):
    t.pencolor(list[i%n])
    t.forward(i*4)
    t.right(360/n+2)
    t.pensize(i/100)
turtle.done()