dg := big.NewInt(0).Sub(degree, bigInt1)
tx := big.NewInt(0).Set(xS)
ty := big.NewInt(0).Set(yS)
cx := big.NewInt(0).Set(xS)
cy := big.NewInt(0).Set(yS)
dg := big.NewInt(0).Sub(degree, bigInt1)
tx := big.NewInt(0).Set(xS)
ty := big.NewInt(0).Set(yS)
cx := big.NewInt(0).Set(xS)
cy := big.NewInt(0).Set(yS)