Kumar starts walking from his house and walks in the straight line for 20 m, then he turns left and walks for 25 m before turning left again. After walking for another 20 m, he turns right and walks for 5 m and then turns right. After walking for another 5 m, he took another right turn, walks for 3 m and took a final left turn to walk another 15 m. If he is now facing the west direction then in which direction did he start walking?