> stem(x, par1, par2, par3)
  The decimal point is at the |
  22 | 0
  23 | 0
  24 | 
  25 | 
  26 | 
  27 | 00000
  28 | 00000
  29 | 00
  30 | 00000
  31 | 000000000000000
  32 | 00000000000000000000
  33 | 000000000000000000
  34 | 000000000000000
  35 | 000000000000000000
  36 | 0000000000000
  37 | 0000000000000
  38 | 00000000000000
  39 | 0000000000
  40 | 000
  41 | 000
  42 | 0