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 right side view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines illustrate boundaries which form no part of the claimed design and the light gray portions within the broken lines illustrate portions of the shoe which from no part of the claimed design.