Why is the command not saved in cron?

Question

Solaris

The task was to perform regular deletion of backup files, there is no experience with Solaris, why is the command not saved in cron? What does 996 mean and why does it give out a ?
# crontab -e
996
00 04 * * * find /export/home/omc/netnumen/ems/ums-server/rundata/backup/cmback/daylycmbackup -mtime +3 -type f -name '*.zip' -exec rm {} \;
?