/* 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
{
{
+ "20 30\n"
+ "40 50 60\n"
+ "\n"
+ "70 80 90\n"
+ "\n"
+ "\n"
+ "100";
String nova
= tratar.
replace(" ",
"\n").
replaceAll("\n+",
"\n");
}
}
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