/* 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
{
{
Scanner sc
= new Scanner
(System.
in); while(sc.hasNextLine())
{
StringBuilder outLine = new StringBuilder();
boolean spaceBefore = false;
int len = line.length();
for(int i = 0; i < len; ++i) {
char c = line.charAt(i);
if (c == ' ') {
spaceBefore = true;
} else {
if (spaceBefore) {
}
outLine.append(c);
spaceBefore = false;
}
}
}
}
}
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