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Japt, 10 bytes o ÅÔò cÔiU Try it o ÅÔò cÔiU :Implicit input of integer U o :Range [0,U) Å :Slice off the first element Ô :Reverse ò ...
#1: Initial revision
# [Japt](https://github.com/ETHproductions/japt), 10 [bytes](https://en.wikipedia.org/wiki/ISO/IEC_8859-1)
o ÅÔò cÔiU
[Try it](https://petershaggynoble.github.io/Japt-Interpreter/?v=1.4.6&code=byDF1PIgY9RpVQ&input=MTA)
o ÅÔò cÔiU :Implicit input of integer U
o :Range [0,U)
Å :Slice off the first element
Ô :Reverse
ò :Partitions of length 2
c :Map then flatten
Ô : Reverse
iU :Prepend U
