/* 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 email = "alice+luna@john+smith@steve+oliver@";
 
		int firstPlus = email.indexOf('+');
		int secondPlus = email.indexOf('+', firstPlus + 1);
		int at = email.indexOf('@', secondPlus);
 
		String newEmail = email.substring(0, secondPlus + 1) + email.substring(at);
 
		System.out.println(newEmail);
 
		String newEmail2 = new StringBuilder(email).delete(secondPlus + 1, at).toString();
 
		System.out.println(newEmail2);
	}
}

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