/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	private static int sumAllDigits(int n) {
	    return Math.abs((n-1) % 9 + 1);
	}
 
	public static void main (String[] args) throws java.lang.Exception
	{
		System.out.println(sumAllDigits(-34));
		System.out.println(sumAllDigits(-12));
		System.out.println(sumAllDigits(-1));
		System.out.println(sumAllDigits(0));
		System.out.println(sumAllDigits(1));
		System.out.println(sumAllDigits(12));
		System.out.println(sumAllDigits(34));
	}
}

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