Josephine lives in the lovely city of Blockville. Every day Josephine walks from her home to Blockville High School, which is located 10 blocks east and 14 blocks north from home. She always takes a shortest walk of 24 blocks.

(a) How many different walks are possible?

(b) 4 blocks east and 5 blocks north of Josephine's home lives Jemima, her best friend. How many different walks to school are possible for Josephine if she meets Jemima at Jemima's home on the way?

(c) There is a park 3 blocks east and 6 blocks north of Jemima's home. How many walks to school are possible for Josephine if she meets Jemima at Jemima's home and they then stop in the park on the way?