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  1. @(x)regexprep(x,'(^.*?[aeiouyAEIOUY]+)','$1 $1 $1')
  2. ans('Land')
Success #stdin #stdout 0.32s 403520KB
stdin
Standard input is empty
stdout
ans =

@(x) regexprep (x, '(^.*?[aeiouyAEIOUY]+)', '$1 $1 $1')

ans = La La Land