The term nonsmoking car is identified in base64 scheme by the sequence bm9uc21va2luZyBjYXI=, while the MD5 signature is equal to 783db4a3fb71fc411c1c3acc1d4a9e15. The ASCII encoding of nonsmoking car in hexadecimal notation is 6e6f6e736d6f6b696e6720636172.