write a Java program for the below approach (Feistel Cipher) for 2 rounds; function of rounds i is fi(x,K)= (2 )^x mod 15 which I was given the ciphertext and need to find the plaintext. ciphertext= 00111111 implement this approach for encryption and decryption (show sample output please)

Lo=0010 Ro=1000 F1=0001 L1=1000 R1=0011 F2=0111 L2=0011 R2=1111 Lo=0010 Ro=1000 F1=0001 L1=1000 R1=0011 F2=0111 L2=0011 R2=1111