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ckn's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 117 | 1463 | 744 |  47 |
- | ||
| AtCoder Beginner Contest 124 | 723 | 1340 |  353 |
+306 | ||
| AtCoder Beginner Contest 134 | 2753 | 665 |  409 |
+56 |