Circular-convolution with using cconv(x,y,n)

Circular convolution is the fundamental operation to compute discrete time signals.

Enter x(n):
[1 2 2 1]
Enter h(n):
[1 2 3 1]
First Sequence x(n) is:
1 2 2 1

Second Sequence h(n) is:
1 2 3 1

Convoluted Sequence Y(n) is:
11 9 10 12