[x^6+x^5+4*x^4+3*x^3+29*x^2+4*x+71, \
x^6-x^5+x^4-x^3+x^2-x+1, \
x^6+x^5-20*x^4-20*x^3+106*x^2+106*x-83, \
x^6-x^5-6*x^4-50*x^3-13*x^2+6*x+64]