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from math import sqrt
def flowsnake(level, startX, startY, endX, endY):
if level == 0:
print"g1 f10 x", endX, "y", endY
else:
p1X = (startX * 2 + endX)/3
p1Y = (startY * 2 + endY)/3
p2X = (startX + endX)/2 + (endY - startY)/sqrt(12.0)
p2Y = (startY + endY)/2 - (endX - startX)/sqrt(12.0)
p3X = (startX + 2 * endX)/3
p3Y = (startY + 2 * endY)/3
flowsnake(level-1, startX, startY, p1X, p1Y)
flowsnake(level-1, p1X, p1Y, p2X, p2Y)
flowsnake(level-1, p2X, p2Y, p3X, p3Y)
flowsnake(level-1, p3X, p3Y, endX, endY)
print "S1M3"
print "g0 z1"
print "g0 x.25 y1.0"
print "g1 f10 z0"
flowsnake(5, .25, 1.0, 3.75, 1.0)
flowsnake(5, 3.75, 1.0, 2.0, 3.95)
flowsnake(5, 2.0, 3.95, .25, 1.0)
print "g0 z1"
print "M2"
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