The term open-heart surgery is identified in base64 scheme by the sequence b3Blbi1oZWFydCBzdXJnZXJ5, while the MD5 signature is equal to 3401327cd92030b3d1657a8907270b92. The ASCII encoding of open-heart surgery in hexadecimal notation is 6f70656e2d68656172742073757267657279.