0, 0, 1, 1   
0, 1, 1, 3 
0, 3, 0, 2   
0, 3, 2, 1  
1, 0, 3, 2   
1, 1, 3, 0   
1, 3, 0, 0   
1, 3, 2, 3   
2, 0, 0, 2   
2, 0, 1, 0   
2, 2, 0, 3   
2, 3, 3, 0   
3, 0, 3, 3   
3, 1, 3, 1   
3, 2, 0, 0   
3, 2, 2, 3   
