The ornamental design for a shoe, as shown and described.
FIG. 1 is a bottom front perspective view of a shoe showing my new design;
FIG. 2 is a bottom view thereof; and,
FIG. 3 is a bottom rear perspective view thereof.
The broken line immediately adjacent to and surrounding the shaded area defines the peripheral bounds of the claimed design and forms no part thereof. The broken lines depicting the remainder of the shoe form no part of the claimed design.