The ornamental design for a shoe, as shown and described.
FIG. 1 is a front perspective view of a shoe showing my new design;
FIG. 2 is a side view thereof; and,
FIG. 3 is a 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 four unshaded regions within the shaded area that are demarcated by broken lines form no part of the claimed design. The broken lines depicting the remainder of the shoe show features that form no part of the claimed design.