text 151 1303 806 1993
text 851 1930 1506 1994
text 151 479 806 680
text 152 1101 805 1198
text 151 321 807 381
text 151 778 806 967
text 852 1788 1506 1852
equation 211 993 745 1075
equation 168 1213 789 1291
text 852 1678 1295 1710
equation 166 399 790 462
equation 1091 1617 1503 1663
equation 1042 1875 1503 1909
equation 309 248 803 296
equation 1028 1731 1327 1767
equation 175 704 784 754
text 151 192 347 222
text 850 191 1508 1602
header 570 126 1084 153