The ornamental design for a shoe, as shown and described.
FIG. 1 is a rear perspective view of a shoe showing my new design;
FIG. 2 is a side view thereof;
FIG. 3 is an opposite side view thereof;
FIG. 4 is an opposite side rear perspective view thereof; and,
FIG. 5 is a rear view thereof.
The unshaded areas within the diamond shapes form no part of the claimed design. The broken lines depicting the remainder of the shoe form no part of the claimed design.