Changes

Summary

1. add optional time argument (commit: db17c31) (details)
2. clean up a few lines (commit: de196e3) (details)
3. simpler input parsing (commit: d7818e9) (details)

add optional time argument
 (commit: db17c31)

clean up a few lines
 (commit: de196e3)

simpler input parsing
 (commit: d7818e9)