import java.util.*;
import java.lang.*;
import java.math.*;
import java.text.*;

class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Double valorDouble =  new BigDecimal(10000000000L).doubleValue();
        DecimalFormat df = new DecimalFormat("0E0");
        System.out.println(df.format(valorDouble));
	}
}