using System;
public class Test
{
public static void Main()
{
long number = 1234567890123456789L;
const long _MAX_LENGTH = 9999999999999999L;
if (number > _MAX_LENGTH) {
long minus = number / (_MAX_LENGTH + 1) * (_MAX_LENGTH + 1);
number = number - minus;
}
Console.WriteLine (number);
}
}
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