import java.io.*; 
class StringPattern 
{ 
    public static void main(String[] args) throws IOException{ 

        String st="he is going in";
        String str[]=st.split(" ");

        for(byte i=0;i<str.length;i++) 
        { 
            System.out.println(); 

            for(byte j=0;j<=i;j++) 
                System.out.print(str[j]+" "); 
        } 
    }
}