Summation of even and odd element of matrix using MATLAB

clc;
m=input('ROW=');
n=input('Cloumn=');
x=randi([2,5],m,n)

Evensum=0;
oddsum=0;
for i=1:1:m

    for j=1:1:n
        r=i+j;
        if mod(r,2)==0
            p=x(i,j);
           Evensum=Evensum+p;
        else
            q=x(i,j);
            oddsum=oddsum+q;
        end
    end
end
Evensum
oddsum