The ornamental design for a shoe, as shown and described.
FIG. 1 is a perspective view of a shoe, showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a bottom perspective view thereof.
The shading in the drawings represents contrast. The broken lines shown on the outer heel of the shoe upper represent stitching and form part of the claimed design.