10 Dhu al-Hijjah: min yawmihi dhālika — on the Day of Sacrifice.
11 Dhu al-Hijjah: min al-ghad — the next day.
12 Dhu al-Hijjah: min baʿd al-ghad — the day after that.
These are three possible days for one obligatory tawaf, not three distinct tawafs. A person who completes it on the 10th does not perform three obligatory visitation tawafs merely because three days were listed.