equation 1558 1978 2281 2182
equation 1548 2372 2281 2424
algorithm 254 297 1237 1075
algorithm 254 1123 1237 1902
text 1305 2442 2285 2987
text 1305 302 2285 1960
text 260 1955 1239 2988
text 1306 2202 2281 2351