@@@@\

2 0 2 1 N

y1z y2z y3z
y4z y5z y6z
y7z y8z y9z
y10z y11z y12z

2 0 2 2N

y1z y2z y3z
y4z y5z y6z
y7z y8z y9z
y10z y11z y12z