#group: free  frags first [ 2^0   2^1   2^2   2^3   2^4   2^5   2^6   2^7   2^8   2^9   2^10  2^11  2^12  2^13  ]
#0    : 15535 33    558   [ 9     7     8     9     13    13    5     5     4     3     1     5     0     0     ]
#1    : 17803 4     556   [ 1     3     1     2     3     2     2     1     2     1     2     3     2     0     ]
#2    : 14688 19    498   [ 8     12    12    10    8     2     2     3     4     3     3     4     0     0     ]
#3    : 6358  18    552   [ 8     3     6     4     9     6     7     5     3     0     4     0     0     0     ]
#4    : 6472  5     493   [ 4     2     2     1     3     2     1     1     0     2     1     0     1     0     ]
#5    : 24689 24    552   [ 1     4     8     7     13    6     4     3     2     5     4     2     1     1     ]
#6    : 16321 43    496   [ 23    17    20    23    16    6     5     1     1     3     1     2     0     1     ]
#7    : 19928 1     552   [ 0     0     0     1     1     0     1     1     1     0     1     1     2     1     ]
