#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    : 964   2     1073  [ 2     1     2     1     1     1     2     2     2     0     0     0     0     0     ]
