text 297 521 1403 708
text 297 1553 1404 1913
equation 574 1261 1401 1343
text 297 1361 1402 1460
text 297 1056 1402 1244
equation 642 724 1401 785
equation 648 1476 1401 1534
equation 617 1928 1400 1981
equation 646 337 1402 394
text 297 414 1265 444
text 297 806 1402 944
text 297 232 1044 320
equation 605 960 1401 1033
equation 466 457 1401 500
text 298 2006 752 2036