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;
FIG. 3 is a rear perspective view thereof; and,
FIG. 4 is a top view thereof.
The broken line showings of the five triangular regions and their respective unshaded areas therein represent stitching regions which form no part of the claimed design. The broken lines showing the remainder of the shoe represent unclaimed subject matter and form no part of the claimed design.