options formdlim="-";
data test;
  input cond $ count1  cond2 $ count2  cond3 $ count3;
datalines;
a 10
a 11
a 12
b 20
b 21 
b 22
;
run;
proc print data=test2;
run;

data test2;
  input cond $ count1 / cond2 $ count2 / cond3 $ count3;
datalines;
a 10
a 11
a 12
b 20
b 21 
b 22
;
run;
proc print data=test2;
run;

data test3;
  input cond $ count1 #2 cond2 $ count2 #3 cond3 $ count3;
datalines;
a 10
a 11
a 12
b 20
b 21 
b 22
;
run;
proc print data=test3;
run;

data test4;
  input cond $ count1 #2 @3 count2 #3 @3 count3;
datalines;
a 10
a 11
a 12
b 20
b 21 
b 22
;
run;
proc print data=test4;
run;

data test5;
  input cond $ count1 / @3 count2 / @3 count3;
datalines;
a 10
a 11
a 12
b 20
b 21 
b 22
;
run;
proc print data=test5;
run;

data _null_;
  put ;
  put "hello world !" // "it's me" / ;
  put ;
run;

data _null_;
  set test5;
  put count1 count2 count3;
run;



/*  see the error produced below - check log + print of data */

data conc_0;
  input total @@;
  conc = "0"; * define a variable containing the value of the nitrofen conc.;
datalines;
27 32 34 33 36 34 33 30 24 31
;
run;
data conc_80;
  input total @@;
  concen = "80"; * define a variable containing the value of the nitrofen conc.;
datalines;
33 33 35 33 36 26 27 31 32 29
;
run;
data conc_160;
  input total @@;
  concentr = "160"; * define a variable containing the value of the nitrofen conc.;
datalines;
29 29 23 27 30 31 30 26 29 29
;
run;
data conc_235;
  input total @@;
  conc = "235"; * define a variable containing the value of the nitrofen conc.;
datalines;
23 21 7 12 27 16 13 15 21 17
;
run;
data conc_310;
  input total @@;
  conc = "310"; * define a variable containing the value of the nitrofen conc.;
datalines;
6 6 7 0 15 5 6 4 6 5
;
data set_all5;
 set conc_0 conc_80 conc_160 conc_235 conc_310;
run;
proc print data=set_all5;
run;