-x;

x-y;

(x+y+z+2*t)^2;

[x,y,z,t](x+y+z+2*t)^10;

[x,y,z,t](x+y+z+2*t)^15;
[x,y,z,t](x+y+z+2*t)^20;
[x,y,z,t](x+y+z+2*t)^40;


/*
[x,y,z,t](x+y+z+2*t)^60;
[x,y,z,t](x+y+z+2*t)^80;

[x,y,z,t](1-x-y-z+t)^2;
*/


[x,y]-x;
[x,y]x-y;
[x,y,z,t,m] (x+y-2*t-2*m+z)^2;

[x,y](4)*(x^5*y*77*x)*x;
[x,y,z,t](x+y+z+2*t)^10;

[x,y,z,t](1-x-y-z+t)^2;
[x,y,z,t](1-x-y-z+t)^20;

[x,y] (x+y)^2;
/*silly test*/
[x, y]2*(x*y);
 [x,y](x+y);
 [x,y,z](x*y+z)*(y*z+x)+z*x+y;
 [x, y, z, t] 1+t;
 [x,y](x*y)^3;

 [x,y]-5;
 /*
 [x,y](x*-y);
 */
 [x,y,z,u]5*(x*y)*(z*u);
 [x,y]x-y;
 [x,y]-x+y;
 [x,y]x-x;
 [x,y,z](x^7+y)+(x-y);
 [x,y,z](x^7+y)-(x^7+y);


[x,y,z](x*y+z)*(y*z+x)+z*x+y;
[x,y,z]((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x;
[x,y,z](((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)*(((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)+((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z;
[x,y,z]((((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)*(((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)+((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)*((((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)*(((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)+((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)+(((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)*(((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)+((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y;
[x,y,z](((((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)*(((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)+((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)*((((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)*(((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)+((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)+(((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)*(((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)+((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)*(((((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)*(((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)+((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)*((((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)*(((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)+((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)+(((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)*(((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)+((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)+((((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)*(((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)+((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)*((((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x)*(((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)+((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)+(((y*z+x)*(x*z+y)+x*y+z)*((x*z+y)*(x*y+z)+y*z+x)+(x*y+z)*(y*z+x)+z*x+y)*(((x*z+y)*(x*y+z)+y*z+x)*((x*y+z)*(y*z+x)+z*x+y)+(y*z+x)*(x*z+y)+x*y+z)+((x*y+z)*(y*z+x)+z*x+y)*((y*z+x)*(x*z+y)+x*y+z)+(x*z+y)*(x*y+z)+y*z+x;


[x,y,z,t]x^10+10*x^9*y+10*x^9*z+10*x^9*t+45*x^8*y^2+90*x^8*y*z+90*x^8*y*t+45*x^8*z^2+90*x^8*z*t+45*x^8*t^2+120*x^7*y^3+360*x^7*y^2*z+360*x^7*y^2*t
+360*x^7*y*z^2+720*x^7*y*z*t+360*x^7*y*t^2+120*x^7*z^3+360*x^7*z^2*t+360*x^7*z*t^2+120*x^7*t^3+210*x^6*y^4+840*x^6*y^3*z+840*x^6*y^3*t+1260*x^6*y^2
*z^2+2520*x^6*y^2*z*t+1260*x^6*y^2*t^2+840*x^6*y*z^3+2520*x^6*y*z^2*t+2520*x^6*y*z*t^2+840*x^6*y*t^3+210*x^6*z^4+840*x^6*z^3*t+1260*x^6*z^2*t^2+840*x^6
*z*t^3+210*x^6*t^4+252*x^5*y^5+1260*x^5*y^4*z+1260*x^5*y^4*t+2520*x^5*y^3*z^2+5040*x^5*y^3*z*t+2520*x^5*y^3*t^2+2520*x^5*y^2*z^3+7560*x^5*y^2*z^2*t+7560
*x^5*y^2*z*t^2+2520*x^5*y^2*t^3+1260*x^5*y*z^4+5040*x^5*y*z^3*t+7560*x^5*y*z^2*t^2+5040*x^5*y*z*t^3+1260*x^5*y*t^4+252*x^5*z^5+1260*x^5*z^4*t+2520*x^5*z
^3*t^2+2520*x^5*z^2*t^3+1260*x^5*z*t^4+252*x^5*t^5+210*x^4*y^6+1260*x^4*y^5*z+1260*x^4*y^5*t+3150*x^4*y^4*z^2+6300*x^4*y^4*z*t+3150*x^4*y^4*t^2+4200*x^4*
y^3*z^3+12600*x^4*y^3*z^2*t+12600*x^4*y^3*z*t^2+4200*x^4*y^3*t^3+3150*x^4*y^2*z^4+12600*x^4*y^2*z^3*t+18900*x^4*y^2*z^2*t^2+12600*x^4*y^2*z*t^3+3150*x^4
*y^2*t^4+1260*x^4*y*z^5+6300*x^4*y*z^4*t+12600*x^4*y*z^3*t^2+12600*x^4*y*z^2*t^3+6300*x^4*y*z*t^4+1260*x^4*y*t^5+210*x^4*z^6+1260*x^4*z^5*t+3150*x^4*z^4*
t^2+4200*x^4*z^3*t^3+3150*x^4*z^2*t^4+1260*x^4*z*t^5+210*x^4*t^6+120*x^3*y^7+840*x^3*y^6*z+840*x^3*y^6*t+2520*x^3*y^5*z^2+5040*x^3*y^5*z*t+2520*x^3*y^5*
t^2+4200*x^3*y^4*z^3+12600*x^3*y^4*z^2*t+12600*x^3*y^4*z*t^2+4200*x^3*y^4*t^3+4200*x^3*y^3*z^4+16800*x^3*y^3*z^3*t+25200*x^3*y^3*z^2*t^2+16800*x^3*y^3*z*
t^3+4200*x^3*y^3*t^4+2520*x^3*y^2*z^5+12600*x^3*y^2*z^4*t+25200*x^3*y^2*z^3*t^2+25200*x^3*y^2*z^2*t^3+12600*x^3*y^2*z*t^4+2520*x^3*y^2*t^5+840*x^3*y*z^6
+5040*x^3*y*z^5*t+12600*x^3*y*z^4*t^2+16800*x^3*y*z^3*t^3+12600*x^3*y*z^2*t^4+5040*x^3*y*z*t^5+840*x^3*y*t^6+120*x^3*z^7+840*x^3*z^6*t+2520*x^3*z^5*t^2+
4200*x^3*z^4*t^3+4200*x^3*z^3*t^4+2520*x^3*z^2*t^5+840*x^3*z*t^6+120*x^3*t^7+45*x^2*y^8+360*x^2*y^7*z+360*x^2*y^7*t+1260*x^2*y^6*z^2+2520*x^2*y^6*z*t+
1260*x^2*y^6*t^2+2520*x^2*y^5*z^3+7560*x^2*y^5*z^2*t+7560*x^2*y^5*z*t^2+2520*x^2*y^5*t^3+3150*x^2*y^4*z^4+12600*x^2*y^4*z^3*t+18900*x^2*y^4*z^2*t^2+12600*
x^2*y^4*z*t^3+3150*x^2*y^4*t^4+2520*x^2*y^3*z^5+12600*x^2*y^3*z^4*t+25200*x^2*y^3*z^3*t^2+25200*x^2*y^3*z^2*t^3+12600*x^2*y^3*z*t^4+2520*x^2*y^3*t^5+1260*
x^2*y^2*z^6+7560*x^2*y^2*z^5*t+18900*x^2*y^2*z^4*t^2+25200*x^2*y^2*z^3*t^3+18900*x^2*y^2*z^2*t^4+7560*x^2*y^2*z*t^5+1260*x^2*y^2*t^6+360*x^2*y*z^7+2520*x^2
*y*z^6*t+7560*x^2*y*z^5*t^2+12600*x^2*y*z^4*t^3+12600*x^2*y*z^3*t^4+7560*x^2*y*z^2*t^5+2520*x^2*y*z*t^6+360*x^2*y*t^7+45*x^2*z^8+360*x^2*z^7*t+1260*x^2*z^6
*t^2+2520*x^2*z^5*t^3+3150*x^2*z^4*t^4+2520*x^2*z^3*t^5+1260*x^2*z^2*t^6+360*x^2*z*t^7+45*x^2*t^8+10*x*y^9+90*x*y^8*z+90*x*y^8*t+360*x*y^7*z^2+720*x*y^7*z*t+
360*x*y^7*t^2+840*x*y^6*z^3+2520*x*y^6*z^2*t+2520*x*y^6*z*t^2+840*x*y^6*t^3+1260*x*y^5*z^4+5040*x*y^5*z^3*t+7560*x*y^5*z^2*t^2+5040*x*y^5*z*t^3+1260*x*y^5*t^4+
1260*x*y^4*z^5+6300*x*y^4*z^4*t+12600*x*y^4*z^3*t^2+12600*x*y^4*z^2*t^3+6300*x*y^4*z*t^4+1260*x*y^4*t^5+840*x*y^3*z^6+5040*x*y^3*z^5*t+12600*x*y^3*z^4*t^2+16800*
x*y^3*z^3*t^3+12600*x*y^3*z^2*t^4+5040*x*y^3*z*t^5+840*x*y^3*t^6+360*x*y^2*z^7+2520*x*y^2*z^6*t+7560*x*y^2*z^5*t^2+12600*x*y^2*z^4*t^3+12600*x*y^2*z^3*t^4+7560*x*
y^2*z^2*t^5+2520*x*y^2*z*t^6+360*x*y^2*t^7+90*x*y*z^8+720*x*y*z^7*t+2520*x*y*z^6*t^2+5040*x*y*z^5*t^3+6300*x*y*z^4*t^4+5040*x*y*z^3*t^5+2520*x*y*z^2*t^6+720*x*y*
z*t^7+90*x*y*t^8+10*x*z^9+90*x*z^8*t+360*x*z^7*t^2+840*x*z^6*t^3+1260*x*z^5*t^4+1260*x*z^4*t^5+840*x*z^3*t^6+360*x*z^2*t^7+90*x*z*t^8+10*x*t^9+y^10+10*y^9*z+10*
y^9*t+45*y^8*z^2+90*y^8*z*t+45*y^8*t^2+120*y^7*z^3+360*y^7*z^2*t+360*y^7*z*t^2+120*y^7*t^3+210*y^6*z^4+840*y^6*z^3*t+1260*y^6*z^2*t^2+840*y^6*z*t^3+210*y^6*t^4+
252*y^5*z^5+1260*y^5*z^4*t+2520*y^5*z^3*t^2+2520*y^5*z^2*t^3+1260*y^5*z*t^4+252*y^5*t^5+210*y^4*z^6+1260*y^4*z^5*t+3150*y^4*z^4*t^2+4200*y^4*z^3*t^3+3150*y^4*z^2*
t^4+1260*y^4*z*t^5+210*y^4*t^6+120*y^3*z^7+840*y^3*z^6*t+2520*y^3*z^5*t^2+4200*y^3*z^4*t^3+4200*y^3*z^3*t^4+2520*y^3*z^2*t^5+840*y^3*z*t^6+120*y^3*t^7+45*y^2*
z^8+360*y^2*z^7*t+1260*y^2*z^6*t^2+2520*y^2*z^5*t^3+3150*y^2*z^4*t^4+2520*y^2*z^3*t^5+1260*y^2*z^2*t^6+360*y^2*z*t^7+45*y^2*t^8+10*y*z^9+90*y*z^8*t+360*y*z^7*
t^2+840*y*z^6*t^3+1260*y*z^5*t^4+1260*y*z^4*t^5+840*y*z^3*t^6+360*y*z^2*t^7+90*y*z*t^8+10*y*t^9+z^10+10*z^9*t+45*z^8*t^2+120*z^7*t^3+210*z^6*t^4+252*z^5*t^5+210*z^4*t^6+120*z^3*t^7+45*z^2*t^8+10*z*t^9+t^10;




