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Top 10 most difficult in DB

IdnrStarting numbersDifficulty
12449920 (Very easy)
12448930 (Hard)
12447860 (Very easy)
12446880 (Very easy)
12445900 (Easy)
12444860 (Easy)
12443860 (Hard)
12442970 (Super easy)
12441930 (Very easy)
12440920 (Easy)