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 area define the bounds of the claimed design and form no part thereof. The broken lines showing the remainder of the shoe are for environmental purposes only, and form no part of the claimed design. The unshaded area within the inverse U-shaped region forms no part of the claimed design.