Convert the following hexadecimal numbers to octal:

(a) 38AC

(b) 7FD6

(c) ABCD

Convert the following binary numbers to octal

(a) 111010

(b) 110110101

(c) 1101100001

Convert the following octal numbers to binary:

(a) 123

(b) 3527

(c) 705

Convert the following binary numbers to octal

(a) 11001

(b) 10101100

(c) 111010111