The term travel back and forth is identified in base64 scheme by the sequence dHJhdmVsIGJhY2sgYW5kIGZvcnRo, while the MD5 signature is equal to 4122d4d7a533e5df4ee21f258a098bf9. The ASCII encoding of travel back and forth in hexadecimal notation is 74726176656c206261636b20616e6420666f727468.