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- static void Main()
- {
- long decNumber = long.Parse(Console.ReadLine());
- string hexNumber = "";
- if (decNumber == 0)
- {
- hexNumber = "0";
- }
- else
- {
- while (decNumber > 0)
- {
- long remain = decNumber % 16;
- decNumber /= 16;
- switch (remain)
- {
- case 10: hexNumber = "A" + hexNumber; break;
- case 11: hexNumber = "B" + hexNumber; break;
- case 12: hexNumber = "C" + hexNumber; break;
- case 13: hexNumber = "D" + hexNumber; break;
- case 14: hexNumber = "E" + hexNumber; break;
- case 15: hexNumber = "F" + hexNumber; break;
- default: hexNumber = remain + hexNumber; break;
- }
- }
- }
- Console.WriteLine(hexNumber);
- }
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