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 right side view of the shoe shown in FIG. 1; and,
FIG. 3 is a left side view of the shoe shown in FIG. 1.
The broken line showing of the sole, the heel, portions of the upper, and bottom of the shoe is for illustrative purposes only and forms no part of the claimed design.