options nocenter nodate;

data one;
  input temp $ number @@;
  cards;
a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 0 a 1 a 1 a 2
b 1 b 1 b 1 b 3
;

proc npar1way scores=data;
  var number;
  class temp;
  exact scores=data;
run;