The term four-letter word is identified in base64 scheme by the sequence Zm91ci1sZXR0ZXIgd29yZA==, while the MD5 signature is equal to 0bbb0fa469ba187f240c2fbd94a30ef8. The ASCII encoding of four-letter word in hexadecimal notation is 666f75722d6c657474657220776f7264.