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Time Limit
Memory Limit
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Output File
2 seconds
256 MiB
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Problem info
Subtask 1 (15 points) has 33 cases.
Subtask 2 (15 points) has 24 cases.
Subtask 3 (30 points) has 18 cases.
Subtask 4 (25 points) has 65 cases.
Subtask 5 (15 points) has 78 cases.