1️⃣2️⃣3️⃣4️⃣🔄6️⃣5️⃣

#123465 #number swap #reversed end #sequence altered #digit reversal #swapped pair

1️⃣2️⃣↔️2️⃣1️⃣

#números volteados #reversed numbers #digit reversal #backwards numbers #number palindrome #switched numbers