#3

2-2;1,1 1 2
1 
#1 
4	% 
 1 0 0 0
 0 1 0 0
 0 0 1 0
 0 0 0 1
1,1,1,1 1 1
1 
#1 
4	% 
 1 0 0 0
 0 1 0 0
 0 0 1 0
 0 0 0 1
1,1,1;1 1 2
3 
#1 
4	% 
 0 -1  0  0
 0  1 -1  0
 0  0 -1 -1
 1  0  1  1
