function A = shuffle_by_1(A)
%SHUFFLE_BY_1 shuffle the columns of A to the right by one, such that the
%new ith column is the old i-1th column, and the new 1st column is the old
%last column.
%
% A = shuffle_by_1(A);
%
% Inputs:
%  A  a rectangular matrix
% Outputs:
%  A  the input matrix with the rows shuffled to the right by 1

end

