. . . . . "python" . . "3.7.9.final.0" . . "None" . "gray_img" . . "None" . "out1" . "@is_fairstep(label='Invert the grayscale image to get a negative')\ndef inverter(gray_img): return 255-gray_img\n" . . . . . . "Invert the grayscale image to get a negative" . "2021-06-14T14:21:54.545218"^^ . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCD0/NXW4aH07lWeqN00hKVsQFT8IArmlwRKAY8IFGV9ijOcjMkxlyXUp3v6tin5/cC4/HgVcv8mEPdCTbIFbnyLf1KmEgLvWs7SE7wIpQFhG79ptwaH3AVfP+BxIZyCXpTIGAV3Fu56yNEyn4nZZELS03O20D9WXDVD7le3RKzUQIDAQAB" . "GEKFtpB5c7Uo/ZrrwRSS0lQVAPcHb1r6vDreNt9rTxcJFed+pyGozBltINV3ugFHNKJ6bcmcyuseOdL1VW285YfO+2am4vGqEPXrwfgyQp5UbxXjjdLjwzYmSi4IbjKhv80MtosFG/RRVgJ8lnlS8MQWmZtm53q3QfHUil6v4dE=" . . . "2021-06-14T14:21:54.545218"^^ . .