Consider the adversary above. If step 3 is modified to flip the last bit instead of the first bit, explain and show that the attack would still work by modifying the last step accordingly.

A chooses m0=0n,m1=1n A receives the challenge ciphertext c=r,s=r,Fk(r)mb A queries the decryption oracle with c=r,s where s is s with first bit flipped Deck(.)oraclereturns10n1:mb=m0 Deck(.)oraclereturns01n1:mb=m1