The term surgical operation is identified in base64 scheme by the sequence c3VyZ2ljYWwgb3BlcmF0aW9u, while the MD5 signature is equal to 65b3447e71879e8f128bebe6a97a7bf3. The ASCII encoding of surgical operation in hexadecimal notation is 737572676963616c206f7065726174696f6e.