The term north-south direction is identified in base64 scheme by the sequence bm9ydGgtc291dGggZGlyZWN0aW9u, while the MD5 signature is equal to feb7cd17bba1651ba1a08c1dc1e30ec4. The ASCII encoding of north-south direction in hexadecimal notation is 6e6f7274682d736f75746820646972656374696f6e.