Input File | Output File |
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Standard Input |
Standard Output |

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- Subtask 1 (5 points) has 1 case.
- Subtask 2 (10 points) has 1 case.
- Subtask 3 (10 points) has 1 case.
- Subtask 4 (15 points) has 1 case.
- Subtask 5 (20 points) has 1 case.
- Subtask 6 (20 points) has 1 case.
- Subtask 7 (10 points) has 1 case.
- Subtask 8 (10 points) has 1 case.

- This problem has a checker
- This problem has a grader