text 297 1679 1403 1933
text 297 1078 1403 1589
equation 588 1940 1401 2030
equation 573 1598 1401 1653
equation 482 736 1401 808
equation 321 619 1401 687
equation 569 994 1401 1055
equation 642 409 1401 449
text 297 820 1305 856
equation 708 499 1401 571
text 297 460 839 490
text 297 915 1402 984
text 297 694 1235 726
equation 662 865 1401 904
text 297 224 1402 401
text 297 580 872 610