The term pre-emptive strike is identified in base64 scheme by the sequence cHJlLWVtcHRpdmUgc3RyaWtl, while the MD5 signature is equal to f2f1ec69788d0e3045ecfaa91ec351b5. The ASCII encoding of pre-emptive strike in hexadecimal notation is 7072652d656d707469766520737472696b65.