Mario Saldinger

program Sum;

var
    f: text;
    a: integer;
    b: integer;

begin
    assign( f, 'sum.in' );
        reset( f );

        read( f, a, b );
    close( f );

    assign( f, 'sum.out' );
        rewrite( f );

        writeln( f, a + b );
    close( f );
end.