x^12+x^11-12*x^10-11*x^9+54*x^8+43*x^7-113*x^6-71*x^5+110*x^4+46*x^3-40*x^2-\ 8*x+1
1
x^12+x^11+x^10+x^9+x^8+x^7+x^6+x^5+x^4+x^3+x^2+x+1