The ornamental design for a bench, as shown and described.
FIG. 1 is a perspective view of a first embodiment of the bench of the present invention;
FIG. 2 is a front elevation view thereof, the rear elevation view being identical thereto;
FIG. 3 is a right side elevation view thereof, the left side elevation view being identical thereto;
FIG. 4 is a top plan view thereof;
FIG. 5 is a perspective view of a second embodiment of the bench of the present invention;
FIG. 6 is a right side elevation view thereof; the left side elevation view being identical thereto, and the front and rear elevation views being identical to the front and rear elevation views of the first embodiment; and,
FIG. 7 is a top plan view thereof.
The broken line showing is for purposes of illustrating environmental structure and forms no part of the claimed design.