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integer addition

100

-2-3

-5

200

-4-6

-10

500

5+8

13

integer subtraction

100

3-4

-1

200

-4+5

1

500

-4+0

-4

integer multiplication

100

2x(-3)

-6

200

-4x(-3)

12

500

-4x1

-4

integer division

100

-4/2

-2

200

-10/(-2)

5

500

100/(-5)

-20