[1 2]

# (map (@ 1 0-0)
#   (.sequence
#     (string (@ 1 1-2) ‘1’)
#   )
#   (.result nil)
# )
# (map (@ 1 0-0)
#   (.sequence
#     (string (@ 1 3-4) ‘2’)
#   )
#   (.result nil)
# )
# :1:0–1: warning: alternated value statement is undefined unless the alternatives are identical
#  [1 2]
#  ^