b < e ? (f = libbcmath.bc_init_num(), g = libbcmath.new_sub_num(b, 0, a.n_value)) :
        (f = libbcmath.new_sub_num(b - e, 0, a.n_value), g = libbcmath.new_sub_num(e,
            0, a.n_value + b - e));