13. A public key code has base 143 and exponent 103. It uses the following letter-to-number equivalents:

J = 1, N = 2,R = 3, H = 4, D = 5, A = 6, S = 7, Y = 8, T = 9, O = 0.

A message has been converted to numbers and broken into blocks. When coded using the above base and exponent the message sent is 10/03. Decode the message