Seeta started walking from her house and goes straight for 12 m and then takes a left turn. She walks 6 m in this direction before taking a right turn and goes another 6 m. She again took a right turn and goes 15 m before reaching the grocery store. She does her shopping and turns left to walk 12 m before taking a left turn. She walks for 20 m and takes a final left turn. She finally walks 30 m to reach her son's school to pick him up. She now has to go 11 m north to reach home. In which direction did she started walking?