from turtle import*#nhap tv turtle
##color("blue","red")#ma mau
##s=6 ##so canh cua da giac
##dai=30
##begin_fill()#fill mau
##for x in range(s):#lap khoang [0,s)
##    forward(dai)#tien doan==dai
##    left(360/s)# hoac right
##end_fill()
s=9
for x in range(s):
    circle(40)#vong tron bk 40
    left(360/s)
    
