SW := 1/5*v[7]^2*v[6]^5*v[5]*v[4]-1/10*v[7]^5*v[6]*v[5]*v[4]^2-1/70*v[7]^7*v[5 ]*v[2]-2*v[5]*v[3]*v[2]+1/10*v[6]^5*v[2]*v[7]-1/1120*v[7]^9*v[2]*v[6]+1/20*v[6 ]^3*v[7]^5*v[2]+v[3]^2*v[7]^2*v[4]-1/8*v[3]*v[7]^4*v[4]^2+2/5*v[6]^5*v[5]*v[3] -1/8*v[6]^2*v[7]^4*v[1]-v[3]*v[7]*v[1]+v[6]^3*v[4]*v[2]+1/4*v[6]^2*v[7]^4*v[5] ^2*v[4]+1/45660160000*v[7]^21+v[3]^3+v[3]*v[7]*v[5]^2*v[4]-3/326144000*v[7]^17 *v[6]^2+1/1164800*v[7]^13*v[6]^4+1/400*v[6]^10*v[7]+1/280*v[7]^8*v[6]*v[5]*v[3 ]-1/1600*v[6]^8*v[7]^5-v[7]^2*v[6]^2*v[5]^2*v[3]-3/2240*v[7]^9*v[4]*v[3]+2*v[7 ]*v[6]*v[5]*v[3]^2-3/2*v[3]*v[6]^2*v[4]^2+3/11200*v[7]^10*v[6]^2*v[3]-v[7]^3*v [6]*v[5]*v[4]*v[3]+1/20*v[3]*v[7]^6*v[5]^2-1/22400*v[7]^9*v[6]^6-1/40*v[6]^2*v [7]^5*v[4]*v[3]-1/20*v[3]*v[7]^2*v[6]^6-1/4*v[3]*v[7]*v[6]^4*v[4]+1/2*v[6]^2*v [7]^3*v[3]^2-v[3]*v[7]^2*v[2]*v[6]-v[7]^2*v[5]*v[4]*v[2]-2*v[5]^2*v[2]*v[7]*v[ 6]-1/20*v[5]^4*v[7]^5-1/291200*v[7]^13*v[5]^2+1/4*v[7]^4*v[6]*v[4]*v[2]+v[7]^2 *v[6]*v[5]*v[1]+1/2548000*v[7]^15*v[6]*v[5]+1/350*v[7]^7*v[6]^5*v[5]-1/40*v[6] ^4*v[7]^5*v[5]^2-1/10*v[5]^2*v[7]*v[6]^6+v[5]^4*v[7]*v[6]^2-1/1120*v[7]^9*v[6] ^2*v[5]^2-1/2*v[5]^2*v[6]^4*v[4]+v[4]^3*v[6]*v[5]-1/80*v[6]^4*v[7]^6*v[3]+1/ 2800*v[7]^10*v[6]*v[5]*v[4]+1/448*v[7]^8*v[1]-1/4*v[6]^4*v[1]+v[5]^2*v[1]-1/ 280*v[7]^7*v[3]^2+v[2]^2*v[7]-1/25088000*v[7]^16*v[4]-1/4*v[7]*v[4]^4+1/80*v[7 ]^6*v[4]^3+1/4076800*v[7]^14*v[3]+1/4*v[7]^2*v[6]^2*v[4]^3-1/8*v[6]^4*v[7]^3*v [4]^2+1/80*v[6]^6*v[7]^4*v[4]-1/4480*v[7]^8*v[6]^4*v[4]-1/44800*v[7]^12*v[6]^2 *v[4]+1/560*v[7]^7*v[6]^2*v[4]^2+1/22400*v[7]^11*v[4]^2-v[5]^4*v[4]-1/80*v[6]^ 8*v[4]+1/1120*v[7]^8*v[5]^2*v[4]+1/2*v[5]^2*v[4]^2*v[7]^3;