DATA a;
INPUT type $1. cycle year;
CARDS;
A 1 2022
A 1 2023
A 1 2024
A 2 2024
A 2 2025
;
run;


data aa;
set a ;
typeyear=compress(type||year);
run;


proc sort data=aa ;by typeyear;run;


data single dup;
set aa;
by typeyear;
if first.typeyear and last.typeyear then output single;
else output dup;
run;