flex python.flx && gcc lex.yy.c
mkdir -p real_output
mkdir -p diff_results

for file in $(ls testing_code); do
    name=$(echo $file | awk -F'[.]' '{print $1}')
    ./a.out < testing_code/$file > real_output/$name.out
    diff example_output/$name.out real_output/$name.out > diff_results/$name.diff
done