specific equipment

0 +1

0 1 2 +3

0 1 2 +3

0 1 2 +3

0 1 +2

0 1 2 +3

0 1 2 +3

0 +1

0 1 2 +3

0 1 2 +3

0 1 2 +3

0 +1

0 1 2 +3