Using the key $"4132765"$ and row column transposition

cipher technique, the cipher text of the plain text "Spring

break postponed until may" is

Replace the above key with "analyst" and show the cipher

text, using the same plain text "Spring break postponed

until may".

Encrypt the above generated cipher text from step $2$ again

using "analyst" as the key word, show the new generated

Ciphertext.