The term operations research is identified in base64 scheme by the sequence b3BlcmF0aW9ucyByZXNlYXJjaA==, while the MD5 signature is equal to aaa6be90a8eb84219b1ee15c1ad7a31f. The ASCII encoding of operations research in hexadecimal notation is 6f7065726174696f6e73207265736561726368.