function Y = allrho1(x,m)
% returns all the Y that are exactly 1 away from x
n = length(x);
dims = repmat([m],[1 n]);
X = list_all_ind(dims);
x = repmat(x,[size(X,1) 1]);
rr = sum(X~=x,2);
yi = find(rr==1);
Y = X(yi,:);
return