Suppose $\{$xn : n $=0,...3\},\{$hn : n $=0,...3\}$ and $\{$yn : n $=0,...3\}$ are discrete time sequences of length $4.$ We are also given that yn is equal to the circular convolution of xn and hn$,$ i$.$e$.,$ yn $=$ hn $$ xn Defining x $=$ x$0$ x$1$ x$2$ x$3$ y $=$ y$0$ y$1$ y$2$ y$3,1$ we would like to write the relation y $=$ Hx $(3)$ Find H in terms of hn$,$ n $=0,...3$