prelude: |
  str1 = [*"a".."m",*"N".."Z",*"0".."9"].join("")
  str10 = str1 * 10
  str100 = str10 * 10
  str1000 = str100 * 10
benchmark:
  capitalize-1: str1.capitalize
  capitalize-10: str10.capitalize
  capitalize-100: str100.capitalize
  capitalize-1000: str1000.capitalize