#FIG 2.1
80 2
2 3 0 1 -1 0 0 21 0.000 7 0 0
	 39 369 -1 409 -1 569 59 569 59 349 39 369 9999 9999
2 3 0 1 -1 0 0 21 0.000 7 0 0
	 269 389 229 349 69 349 69 409 289 409 269 389 9999 9999
2 3 0 1 -1 0 0 21 0.000 7 0 0
	 19 599 59 639 219 639 219 579 -1 579 19 599 9999 9999
2 3 0 1 -1 0 0 21 0.000 7 0 0
	 249 619 289 579 289 419 229 419 229 639 249 619 9999 9999