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http://paste.jp/7d64b81a/
https://paste.in/M1A1A1
https://pastelink.net/2ftqq
https://paizaio/projects/sXBlRya_ZAkWRfYjWLYL0g
https://pasteio.com/xQ6QI0BvF4Sx
https://ideone.com/tjCaRP
https://onlinegdb.com/HyzZduPTv