The ornamental design for a shoe, as shown and described.
FIG. 1 is a front perspective view of the shoe.
FIG. 2 is a back view of the shoe.
FIG. 3 is a top view of the shoe.
FIG. 4 is a bottom view of the shoe.
FIG. 5 is a left side view of the shoe; and,
FIG. 6 is a right side view of the shoe.
The dash-dash broken lines depict a shoe lace as environmental structure and form no part of the claimed design. The remaining broken lines depict portions of the shoe that form no part of the claimed design.