/* 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
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String[] strArr = {"1", "2", "3"};
		StringBuilder strBuilder = new StringBuilder();
		for (int i = 0; i < strArr.length; i++) {
		   strBuilder.append( strArr[i] );
		}
		String newString = strBuilder.toString();
		System.out.println(newString);
	}
}

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