Consider a simple block cipher using 8-bit block that is based on the Feistel Structure. It has only two rounds and has no initial or final permutation. The F-function for round i(i=1,2,...,16) is defined as ) (, ) ) = (2) ) ) 15, where R is a plaintext (right half), ki is a key that k1 = 7, and plaintext is 10110010.

What is the ciphertext after the first round?