The ornamental design for a shoe, as shown and described.
FIG. 1 is a side view of a shoe showing my new design; and,
FIG. 2 is a front perspective view thereof.
The broken lines immediately adjacent to the shaded area represent the bounds of the claimed design and form no part thereof. The four small broken line circles within the raised circular elements form no part of the claimed design. The broken lines depicting the remainder of the shoe form no part of the claimed design.