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 line immediately adjacent to the shaded area defines the bounds of the claimed design and forms no part thereof. The oblique shade lines represent a translucent or transparent appearance. The broken lines depicting the remainder of the shoe form no part of the claimed design.