//Triangular mutiplication table
class Triangular mutiplication table
{
	public static void main(String args[])
	{
		int i,j;

		for(i=0; i<3; ++i)
		{
			outer:
			{
				for(j=0; j<3; ++j)
				{
					if(j > i)
					{
						System.out.println();	
						continue;
					}
					System.out.println(" " + i*j);
				}
			}
			System.out.println();
		}
	}
}