(
  ID = 1 () (ID=2 () with 10.0
          ID=3 () with 10.0
          ID=4 () with 10.0
          ID=5 () with 10.0) mark=0
  ID = 2 () (ID=1 () with 10.0
          ID=6 () with 10.0
          ID=5 () with 10.0) mark=0
  ID = 3 () (ID=1 () with 10.0
          ID=7 () with 10.0) mark=0
  ID = 4 () (ID=1 () with 10.0
          ID=8 () with 10.0
          ID=9 () with 10.0
          ID=10 () with 10.0) mark=0
  ID = 5 () (ID=1 () with 10.0
          ID=2 () with 10.0
          ID=10 () with 10.0
          ID=11 () with 10.0) mark=0
  ID = 6 () (ID=2 () with 10.0
          ID=7 () with 10.0
          ID=9 () with 10.0) mark=0
  ID = 7 () (ID=3 () with 10.0
          ID=6 () with 10.0
          ID=10 () with 10.0) mark=0
  ID = 8 () (ID=4 () with 10.0) mark=0
  ID = 9 () (ID=4 () with 10.0
          ID=6 () with 10.0) mark=0
  ID = 10 () (ID=4 () with 10.0
           ID=7 () with 10.0
           ID=5 () with 10.0) mark=0
  ID = 11 () (ID=5 () with 10.0) mark=0
)