function [s,p] = mySumm2_lecture_07(varargin)
s=0;
p=1;
if mod(nargin,2)==0
    for i=1:nargin
    s=s+sum(sum(cell2mat(varargin(i))));
    end
else
    for i=1:nargin
    s=s+sum(sum(cell2mat(varargin(i))));
    p=p*prod(prod(cell2mat(varargin(i))));
    end
end
end