1000 1000
OPEN 500 500 10 10
CLOSE 499 499
CLOSE 499 500
CLOSE 500 499
CLOSE 510 509
CLOSE 509 510
CLOSE 510 510
CLOSE 499 510
CLOSE 500 510
CLOSE 499 509
CLOSE 510 499
CLOSE 510 500
CLOSE 509 499
