Complex gggamgam1l(int h1, int h2, int h3, int h4);
Complex gggamgam2l(int h1, int h2, int h3, int h4);

Complex qqbgamgam_tree(int h1, int h3, int h4);
Complex qbqgamgam_tree(int h2, int h3, int h4);

Complex A_cont_1l(int hel, double x, double s, double muR);