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 side view thereof;
FIG. 3 is an opposite side front perspective view thereof;
FIG. 4 is an opposite side view thereof; and,
FIG. 5 is a front view thereof.
The broken line immediately inside the shaded region and the unshaded are therein forms no part of the claimed design. The broken lines depicting the remainder of the shoe form no part of the claimed design.