$ perl lowest_sort.pl 
0 2       4 0  
1 11      4 2  
2 6       4 3  
3 0       3 0  
4 4       3 1  
5 8       3 3  
6 1       2 0  
7 9       2 3  
8 5       0 0  
9 3       0 1  
10 10     0 2  
11 7      0 3