5m Zen
4x 8y 4
4x 8y 4 pictures 5
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4x 8y 4
x 2y 4 4x 8y 16
7x 5y 4 4x 8y 9
x2 y2 4x 8y 4 0
x2 4x 8y 4 0
y 4x 8y 4
4x 8y 4 0
4x 8y 4 x 2y
4x 8y 4
