# 
#
# 8B  -- Rocking


g.paper(0)
g.pen(100)
g.norefresh()

a = (80, 70, 60, 50, 40, 30, 25, 25, 30, 40, 50, 60, 70, 80, 90, 100)

while 1:
	g.pause(15)
    	x = 0
      	w = 7
        for k in range (0, 7):
		g.refresh()
	        g.paper(0)
		for i in range (k, k+9):
			if (x >= 100):
				x = 0
			        for j in range (0, 12):
					x = x+1
					g.pen(x)
					g.line(x, 0, x, a[i])
					for l in range (0, 5):
						g.pen(x)
					        g.line((45+l), (a[i]+5), (45+l), (a[i]+10))
					        g.line((35+l), (a[i]+5), (35+l), (a[i]+10))
					        g.line((25+l), (a[i]+5), (25+l), (a[i]+10))

	g.pause(15)
        x = 0
	for k in range (0, 7):
		g.refresh()
		w = w-1
		g.paper(0)
		for i in range (w, w+9):
			if(x>=100):
				x = 0
				for j in range (0, 12):
					x = x+1
					g.pen(x)
					g.line(x, 0, x, a[i])
					for l in range (0, 5):
						g.pen(x)
						g.line((45+l), (a[i]+5), (45+l), (a[i]+10))
						g.line((35+l), (a[i]+5), (35+l), (a[i]+10))
						g.line((25+l), (a[i]+5), (25+l), (a[i]+10))