The ornamental design for a shoe, as shown and described.
FIG. 1 is a rear perspective view of a shoe showing my new design;
FIG. 2 is a rear view thereof; and,
FIG. 3 is an opposite side rear perspective view thereof.
The broken lines immediately adjacent to the shaded areas define the bounds of the claimed design and form no part thereof. The broken lines depicting the remainder of the shoe show features that form no part of the claimed design.