export data with step 2 as ics
step 15

Evaluation took:
  543.234 seconds of real time
  691.068000 seconds of total run time (577.003000 user, 114.065000 system)
  [ Run times consist of 11.735 seconds GC time, and 679.333 seconds non-GC time. ]
  127.21% CPU
  1,528,004,208,292 processor cycles
  2,257,026,560 bytes consed

CL-USER> (room)
Dynamic space usage is:   2,339,413,968 bytes.
Read-only space usage is:      5,680 bytes.
Static space usage is:         3,120 bytes.
Control stack usage is:        8,616 bytes.
Binding stack usage is:        1,072 bytes.
Control and binding stack usage is for the current thread only.
Garbage collection is currently enabled.

Breakdown for dynamic space:
  2,222,333,216 bytes for    63,630 simple-array-complex-single-float objects.
  117,113,520 bytes for 1,940,350 other objects.
  2,339,446,736 bytes for 2,003,980 dynamic objects (space total.)
; No value
CL-USER>
change the modulo code, so that mod(-10,580) gives 570