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 - 🦢🐦🐦 $\rightsquigarrow$ 🐔
 - 🦜🐤 $\rightsquigarrow$ 🐥
 - 🦜🦜 $\rightsquigarrow$ 🕊️
+- 🐧🐧 $\rightsquigarrow$ 🐦
 
 ## Arithmetic