The following two problems are from a separate situation, but still using the same notation for the decryption matrix,

6.) Let's suppose we are working on the assumption that thFB, and we get the possible relation f=33e. The digrams following FB in the ciphertext are: QV, FI, WF, XY, KL, BW, QJ, TA

For each one find what values of e (the entry in N) decrypts it to something of the form e. (We are trying to find the value of e that gives a plaintext with lots of "the" strings.)

7.) For the previous question, you should have found that f=33e did not lead to many "the" strings in the plaintext, even using the "best" value of e. For this problem, repeat what you did, but using f=103e. What do you think the correct top row of N is?