# 1cae84202322dbc167e444ed41f3a68bc4d959e98a07c24f8e89b035b56760f2 Elan 1.7.0 guest default_profile valid

main
  variable st set to new Set<of Int>()
  set st to st.addFromList([3, 5, 7])
  print st.length()
  set st to st.add(7)
  print st.length()
  set st to st.remove(3)
  print st.length()
  set st to st.remove(3)
  print st.length()
  print st
end main
