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| Easy | Medium | Hard | |
| #1 | easy1p | medium1p | hard1p |
| #2 | easy2p | medium2p | hard2p |
| #3 | easy3p | medium3p | hard3p |
| #4 | easy4p | medium4p | hard4p |
| #5 | easy5p | medium5p | hard5p |
| #6 | easy6p | medium6p | hard6p |
| #7 | easy7p | medium7p | hard7p |
| #8 | easy8p | medium8p | hard8p |
| #9 | easy9p | medium9p | hard9p |
| #10 | easy10p | medium10p | hard10p |
