Give the amino acid sequence of hexapeptides that produce the following sets of fragments on partial acid hydrolysis:

(a) Arg, Gly, IIe, Leu, Pro, Val gives Pro-Leu-Gly, Arg-Pro, Gly-IIe-Val

(b) N, L, M, W, V2 gives V-L, V-M-W, W-N-V