Subtraction -- Largest Term to 5
120 seconds
3
- 3
0
1
2
3
4
5
1
- 0
0
1
2
3
4
5
2
- 2
0
1
2
3
4
5
3
- 1
0
1
2
3
4
5
4
- 3
0
1
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3
4
5
3
- 3
0
1
2
3
4
5
2
- 2
0
1
2
3
4
5
2
- 1
0
1
2
3
4
5
0
- 0
0
1
2
3
4
5
2
- 0
0
1
2
3
4
5
5
- 4
0
1
2
3
4
5
5
- 3
0
1
2
3
4
5
2
- 0
0
1
2
3
4
5
2
- 1
0
1
2
3
4
5
1
- 0
0
1
2
3
4
5
2
- 2
0
1
2
3
4
5
5
- 4
0
1
2
3
4
5
2
- 1
0
1
2
3
4
5
2
- 0
0
1
2
3
4
5
3
- 2
0
1
2
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4
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4
- 2
0
1
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5
- 3
0
1
2
3
4
5
5
- 1
0
1
2
3
4
5
0
- 0
0
1
2
3
4
5
4
- 1
0
1
2
3
4
5
1
- 0
0
1
2
3
4
5
2
- 0
0
1
2
3
4
5
4
- 4
0
1
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5
- 5
0
1
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3
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5
4
- 2
0
1
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3
4
5
2
- 0
0
1
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3
4
5
5
- 0
0
1
2
3
4
5
5
- 2
0
1
2
3
4
5
1
- 0
0
1
2
3
4
5
0
- 0
0
1
2
3
4
5
3
- 3
0
1
2
3
4
5
3
- 2
0
1
2
3
4
5
5
- 4
0
1
2
3
4
5
3
- 3
0
1
2
3
4
5
3
- 1
0
1
2
3
4
5
