r= x^32 + x^28 - x^20 - x^16 - x^12 + x^4 + 1 q= (x^58 - 2*x^54 + x^50 + 2*x^48 - 4*x^44 + 2*x^40 - x^38 + 2*x^34 - x^30 - 2*x^28 + 4*x^24 - 2*x^20 + x^18 - 2*x^14 + x^10 + 2*x^8 + 4*x^4 + 2)/8 P= 8*q_k30method67 v= x