<image>As shown in the diagram, the positive half of a number line is wound around a circle (the circumference of which is 3 units long, with the points 0, 1, and 2 marked at the three division points on the circumference) in the following manner: first, align the origin with the point on the circumference corresponding to 0, then wind the positive half of the number line clockwise around the circumference of the circle so that the points on the number line corresponding to 1, 2, 3, 4, ... align respectively with the points on the circumference corresponding to 1, 2, 0, 1, ... By doing so, an association between the integers on the positive half of the number line and the numbers on the circle's circumference is established.

(1) The number a on the circumference corresponds to the number 5 on the number line, then a = ____;
(2) An integer point on the number line, having wound around the circumference n times (where n is a positive integer), and landing at the position on the circumference corresponding to the number 1, is ____ (expressed in an algebraic expression containing n).