sas - ods output in proc logistic -

i running proc logistic selection =score , best model based on chi-square value. here code

  options symbolgen;   %let input_var=abc_def_ckkkkkedhojjjjjerren101 dept_gert  home_value      child_household ;     ods output bestsubsets=score;   proc logistic data=trail;   model response(event='y')=&input_var   / selection=score best=1;   run; 

the output dataset named score has been generated through ods output. below image of data set.

score data set image

in score dataset, in "variables included in model" column, can see part of variable name "abc_def_ckkkkkedhojjjjjerren101" , not entire name. may know why happening , how entire variable name. please let me know

add namelen=32 proc logistic statement.