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| Easy | Medium | Hard | |
| #1 | 1p | 1p | 1p |
| #2 | 2p | 2p | 2p |
| #3 | 3p | 3p | 3p |
| #4 | 4p | 4p | 4p |
| #5 | 5p | 5p | 5p |
| #6 | 6p | 6p | 6p |
| #7 | 7p | 7p | 7p |
| #8 | 8p | 8p | 8p |
| #9 | 9p | 9p | 9p |
| #10 | 10p | 10p | 10p |
| #11 | 11p | 11p | 11p |
| #12 | 12p | 12p | 12p |
| #13 | 13p | 13p | 13p |
| #14 | 14p | 14p | 14p |
| #15 | 15p | 15p | 15p |
| #16 | 16p | 16p | 16p |
| #17 | 17p | 17p | 17p |
| #18 | 18p | 18p | 18p |
| #19 | 19p | 19p | 19p |
| #20 | 20p | 20p | 20p |
| #21 | 21p | 21p | |
| #22 | 22p | 22p | |
| #23 | 23p | 23p | |
| #24 | 24p | 24p | |
| #25 | 25p | 25p | |
| #26 | 26p | 26p | |
| #27 | 27p | 27p | |
| #28 | 28p | 28p | |
| #29 | 29p | 29p | |
| #30 | 30p | 30p | |
| #31 | 31p | ||
| #32 | 32p | ||
| #33 | 33p | ||
| #34 | 34p | ||
| #35 | 35p | ||
| #36 | 36p | ||
| #37 | 37p | ||
| #38 | 38p | ||
| #39 | 39p | ||
| #40 | 40p |
