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2x+y+z=1 x+y+z=0 x-y+z=-4 x+y-z=0
2x-2y-z-3=0 2x-2y+z-5=0 2x+2y-z+1=0 2x+2y+z-1=0
x-2y+3z+6=0 x+2y+3z+6=0 2x-y-3=0 x-2y+3z-6=0
x-2y+3z+6=0 x+2y+3z+6=0 2x-y-3=0 x-2y+3z-6=0
x+y-4z+2=0 x-y-4z+2=0 x+y-4z-2=0 x-y-4z-2=0
x-2y+3z+6=0 x+2y+3z+6=0 2x-y-3=0 x-2y+3z-6=0
x+2y+3z-6=0 x+2y+3z+6=0 2x-y-3=0 x-2y+3z-6=0
2x-2y-z-3=0 2x-2y+z-5=0 2x+2y-z+1=0 2x+2y+z-1=0
x-3y-2z=0 x+3y-2z-6=0 x-3y+2z+4=0 x+3y+2z-2=0
x+2y+3z+6=0 x+2y+3z-6=0 x-2y+3z+6=0 x-2y+3z-6=0
x-y+z=-2 x+y+z=2 x-2y+z=-3 x-y-z=0
2x-2y-z-3=0 2x-2y+z-5=0 2x+2y-z+1=0 2x+2y+z-1=0
x-3y-2z=0 x+3y-2z-6=0 x-3y+2z+4=0 x+3y+2z-2=0