begin
    x = (ex.bodies[1]).body.body.body.lhs.tns.bind
    x_val = x.val
    A_lvl = ((ex.bodies[1]).body.body.body.rhs.tns.args[1]).bind.lvl
    A_lvl_2 = A_lvl.lvl
    A_lvl_3 = A_lvl_2.lvl
    A_lvl_3_val = A_lvl_3.lvl.val
    for i_3 = 1:A_lvl.shape
        A_lvl_q = (1 - 1) * A_lvl.shape + i_3
        for j_3 = 1:A_lvl_2.shape
            A_lvl_2_q = (A_lvl_q - 1) * A_lvl_2.shape + j_3
            for k_3 = 1:A_lvl_3.shape
                A_lvl_3_q = (A_lvl_2_q - 1) * A_lvl_3.shape + k_3
                A_lvl_4_val = A_lvl_3_val[A_lvl_3_q]
                x_val = A_lvl_4_val + x_val
            end
        end
    end
    result = ()
    x.val = x_val
    result
end
