- setup:
  cleanup:
  args:     1 3 + .
  input:
  output:   4
- setup:
  cleanup:
  args:     1 3 - .
  input:
  output:   -2
- setup:
  cleanup:
  args:     '"3 2 * ."'
  input:
  output:   6
- setup:
  cleanup:
  args:     3 2 / .
  input:
  output:   1.5