function go()
 for i = 1,64 do
  turtle.forward()
  turtle.placeDown()
 end
end
function left()
 turtle.forward()
 turtle.turnLeft()
 turtle.forward()
 turtle.turnLeft()
end
function right()
 turtle.forward()
 turtle.turnRight()
 turtle.forward()
 turtle.turnRight()
end

go()
left()
turtle.select(2)
go()
right()
turtle.select(3)
go()
left()
turtle.select(4)
go()
right()
turtle.select(5)
go()
left()
turtle.select(6)
go()
right()
turtle.select(7)
go()
left()
turtle.select(8)
go()
right()
turtle.select(9)
go()
left()
turtle.select(10)
go()
right()
turtle.select(11)
go()
left()
turtle.select(12)
go()
right()
turtle.select(13)
go()
left()
turtle.select(14)
go()
right()
turtle.select(15)
go()