text 150 1641 809 1995
text 851 1830 1510 1994
text 151 191 810 1534
text 851 1390 1509 1715
equation 969 1181 1503 1367
equation 878 1735 1503 1806
text 850 190 1510 1158
equation 363 1552 803 1623
header 434 130 1238 156