31 days, 36 people, four shifts a day. Counts include everyone on shift.
Who everybody is, what they asked for, and what the month gave them.
Heads on shift against the floor and ceiling for that weekday, and what would close the gaps.
Everything the schedule could not honour, what it bought, and whether it is fixable.
The bands, the weights that decide every trade-off, and where the schedule is pushed.