[4]
[1]
—
[0]
[-2]
[-1]
[5,-7,0]
[1,-1,0]
[-3,3,0]
[-1,1,0]
[2,3,0,-5,-6]
[1,1,0,-1,-1]
[1,-2,0,3,4,0,-1,-4,0,5]
[1,-1,0,1,1,0,-1,-1,0,1]