The term primary atypical pneumonia is identified in base64 scheme by the sequence cHJpbWFyeSBhdHlwaWNhbCBwbmV1bW9uaWE=, while the MD5 signature is equal to b36adc462eaf9a73a3744f3e98f9cba4. The ASCII encoding of primary atypical pneumonia in hexadecimal notation is 7072696d61727920617479706963616c20706e65756d6f6e6961.