The term president coolidge is identified in base64 scheme by the sequence cHJlc2lkZW50IGNvb2xpZGdl, while the MD5 signature is equal to a0ca675d47ae9eae2b6d89a5a7f188f1. The ASCII encoding of president coolidge in hexadecimal notation is 707265736964656e7420636f6f6c69646765.