 
										
											 4
 4 
										
											 3
 3  1
 1 
										
											 2
 2 
										
											 1
 1 
										
											 2
 2 
										
											 2
 2  2
 2 
										
											 1
 1 
										
											 1
 1 
										
											 1
 1 
										
											 2
 2 
										
											 1
 1