Please help with the following cryptography computer science problem

This problem provides a numerical example of encryption using a one-round ver- sion of DES. We start with the same bit pattern for the key K and the plaintext namely 0123456789ABCDEF 00000001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 Hexadecimal notation: Binary notation: a. Deive Ki, the first-round subkey b. Derive Lo, Ro c. Expand R to get ElRol, where Ell is the expansion function of Table S1 d. Calculate A EIRol Ki e. Group the 48-bit result of (d) into sets of 6 bits and evaluate the corresponding S-box substitutions. Concatenate the results of (e) to get a 32-bit result, B. g. Apply the permutation to get P(B) h. Calculate R1-P(B) 4 i. Write down the ciphertext