x1,x2,x3,x4,x5
-x1,-x2,x3,-x4,-x5
-x1,x2,-x3,x2-x4,-x1+x5
x1,-x2,-x3,-x2+x4,x1-x5
-x1,-x2,-x3,-x4,-x5
x1,x2,-x3,x4,x5
x1,-x2,x3,-x2+x4,x1-x5
-x1,x2,x3,x2-x4,-x1+x5