The term flexible sigmoidoscopy is identified in base64 scheme by the sequence ZmxleGlibGUgc2lnbW9pZG9zY29weQ==, while the MD5 signature is equal to 9219ba45e36764353a38d2dbc744db77. The ASCII encoding of flexible sigmoidoscopy in hexadecimal notation is 666c657869626c65207369676d6f69646f73636f7079.