X 2 1 dx dy

X 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dy
X 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dy
X 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dy
X 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dy
X 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dyX 2 1 dx dy