text 851 957 1508 1919
text 151 1083 808 1928
text 851 191 1506 845
equation 180 651 775 812
text 151 835 806 1001
equation 272 1948 683 2000
equation 977 868 1376 932
equation 984 1941 1371 2000
text 152 528 805 630
equation 152 1022 805 1058
algorithm 151 186 802 488
header 440 130 1224 152