import java.util.*;
public class Main{
public static void main(String[] args){
Scanner in=new Scanner(System.in);
while(in.hasNext()) {
String s=in.nextLine();
StringBuilder sbd=new StringBuilder(s);
int addZero = 8 - sbd.length()%8;
if(addZero<8) {
for (int i = 0; i < addZero; i++) {
sbd.append(0);
}
}
int num=sbd.length()/8;
for (int i = 0; i < num-1; i++) {
sbd.insert((i+1)*8+i, ",");
}
String[] sbdArray=sbd.toString().split(",");
for (int i = 0; i < sbdArray.length; i++) {
System.out.println(sbdArray[i]);
}
}
}
}