from turtle import*
color('black','red')
m=10
speed(100)
begin_fill()
right(120)
for i in range(2):
	forward(10*m)
	right(60)
	forward(20*m)
	right(120)
end_fill()
canvas=getcanvas()
cnt=0
for x in range(-100*m, 100*m,m):
	for y in range(-100*m, 100*m,m):
		item=canvas.find_overlapping(x,y,x,y)
		if len(item)==1 and item[0]==5:
			cnt+=1
print(cnt)