The ornamental design for a shoe, as shown and described.
FIG. 1 is a perspective view of a shoe showing our new design;
FIG. 2 is a side elevation view thereof;
FIG. 3 is a side elevation view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a front elevation view thereof; and,
FIG. 6 is a back elevation view.
The broken lines in the drawings illustrate threading that form no part of the claimed design. The dot-dash lines show portions of the shoe and form no part of the claimed design.