text 851 798 1508 1100
text 151 1553 806 1717
text 851 1407 1508 1994
equation 176 1730 803 1866
equation 924 632 1503 773
text 151 989 806 1469
equation 187 1481 803 1536
equation 881 1122 1503 1229
equation 179 921 803 976
equation 865 1304 1503 1386
equation 186 1943 803 2000
text 851 1249 1452 1280
text 151 190 806 906
text 151 1866 804 1932
text 851 191 1508 610
header 382 128 1282 152