(1 2 3 4 5 6) : 0

# (map (@ 1 0-0)
#   (.sequence
#     (unordered (@ 1 0-1)
#       (.inner
#         (string (@ 1 1-2) ‘1’)
#         (string (@ 1 3-4) ‘2’)
#         (string (@ 1 5-6) ‘3’)
#         (string (@ 1 7-8) ‘4’)
#         (string (@ 1 9-10) ‘5’)
#         (string (@ 1 11-12) ‘6’)
#       )
#     )
#   )
#   (.result
#     (string (@ 1 16-17) ‘0’)
#   )
# )
# :1:1–2: error: unordered subsequence longer than 5 elements need double brackets
#  (1 2 3 4 5 6) : 0
#   ^