h8.y
h8.x
h7.y
h7.x
h6.y
h6.x
h5.y
h5.x
h4.y
h4.x
h3.y
h3.x
h2.y
h2.x
h1.y
h1.x
h0.y
h0.x
g8.y
g8.x
g7.y
g7.x
g6.y
g6.x
g5.y
g5.x
g4.y
g4.x
g3.y
g3.x
g2.y
g2.x
g1.y
g1.x
g0.y
g0.x
Descartes