/**
* @author Rajesh Sirangu
*
*/
public class displayNumbers {

public static void main(String args[]){

System.out.println("***START**");
for(int i=1;i<5;i++){
for(int j=1;j<=i-1;j++){
for(int p=1;p<=j;p++){
System.out.print(j+",");
}
}
for(int j=1;j<=i;j++){
//condition is to display comma , properly.
if(j==i){
System.out.print(i);
}else{
System.out.print(i+",");
}
}
System.out.println();
}
System.out.println("***END***");
}
}