Today   (2020-02-02,   at the time of this writing)   happens to be a palindrome,   without the hyphens,   not only for those countries which express their dates in the   yyyy-mm-dd   format but,   unusually,   also for countries which use the   dd-mm-yyyy   format.



Task
Write a program which calculates and shows the next 15 palindromic dates for those countries which express their dates in the   yyyy-mm-dd   format.




is_palyndrom_date() { date -d "$1" 1>/dev/null 2>&1 && echo "$1" ; }
 
for _H in {2..9}; do
 for _I in {0..9}; do
  for _J in {0..99}; do
   is_palyndrom_date ${_H}${_I}`printf "%02d%s" ${_J}`-`printf "%02d%s" ${_J} | rev`-`printf "%02d%s" ${_H}${_I} | rev`
  done
 done
done
 