How to enter Canada NR4 (Income code 11) into US tax return?

Have a Canada NR4 with values in both line 1 and line 2.  Line 2 doesn't have any non-resident tax withheld and has exemption code = S.    Line 1 does have have non-resident tax withheld.  Both lines 1 and 2 have some gross income.  How to enter either of the lines into US 1040 tax return?