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 left side view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a front view thereof;
FIG. 6 is top view thereof; and,
FIG. 7 is a left side perspective view thereof.
The broken lines showing heels, portions of the upper and portions of the straps in the drawings show parts of the shoe that form no part of the claimed design.