Q$1$:

Alice's RSA certificate $($N$,$ e$)$: $(6$CB$3$EEAED$93$D$9893$A$4$E$27093$DEB$8$CB$0$A$2$B$1595$DDA$94618$FF$3,10001)$

Bob's RSA certificate $($N$,$ e$)$:

$(845$DB$74$F$8$E$27$C$9$A$7$CFFEBAA$077016813$C$2$C$7$EDCF$10$C$32$E$52$E$38$F$1$D$116$AC$752$C$1$AFEE$36$B$0$B$9$AF$15$F$6655$C$66$C$445$A$026$E A$1$F$,10001)$

Eve intercepted the following number Bob sent to Alice through the public network:

$5186$DCCF$004$E$8$E$94$D$6$C$2$A$1$E$01$D$808$C$726$E$214$A$109$E$5$AAC$463$

Alice knows that Bob simply concatenates the numeric values of the letters in the original plaintext message using ASCII encoding into an integer and then encrypts it with RSA algorithm:

What is the original plaintext message in English?

Note:

$(1)$ The keys and the intercepted number are in base $16.$

$(2)$ You must show the intermediate steps using Sagemath.

Just listing the answer$($s$)$ without giving the correct steps,