The ornamental design for a shoe, as shown and described.
FIG. 1 is a top view of a shoe showing my design;
FIG. 2 is a front view thereof;
FIG. 3 is a first side front perspective view thereof; and,
FIG. 4 is a second side front perspective view thereof.
The even-length broken lines are directed to environment, represent unclaimed subject matter, and form no part of the claimed design. The dot-dash lines immediately adjacent to the shaded areas form an unclaimed boundary around at least a portion of the claimed subject matter, and form no part of the claim.