2,000 +1,001

2,000 +1,001

1,000 +1

2 +1

999 -999

999 -999

999

1 -1

1,998 +1,008

1,998 +999

999 +5

2

990 -1,999

999 -1,990

995 -2

2 -1

2,989

2,989

996

3