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