Should K-1 from a trust showing interest income of x with cat 14, code A showing tax exempt interest of y shows taxable interest of x or x-y on 1040?

line 1 of the k-1 should only be fully taxable interest for US income tax purposes. This carries to 1040 Schedule B The total of interest income then flows to 1040 line 2b

line 14a is only for tax-exempt interest. This  shown on 10440 line 2a

Thanks, that helps