# b6f55497e10e1faa7e9e93c04c33435f7ccaa8c6934bf43118508a503a1051c4 Elan 1.6.4 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
