size 512 512 bitpattern + + + + line 50 260 60 260 line 50 264 60 264 line 50 268 60 268 line 50 272 60 272 line 50 276 60 276 line 50 280 60 280 line 50 284 60 284 line 50 288 60 288 line 50 292 60 292 line 50 296 60 296 line 50 300 60 300 line 50 304 60 304 bitpattern - + + + - + + - line 49 260 49 260 line 49 264 49 264 line 49 268 49 268 line 49 272 49 272 line 49 276 49 276 line 49 280 49 280 line 49 284 49 284 line 49 288 49 288 line 49 292 49 292 line 49 296 49 296 line 49 300 49 300 line 49 304 49 304