Answer:
see explaination
Step-by-step explanation:
The program code.
def make_cave():
cave = {}
cave[1] = [2, 10, 11]
cave[2] = [1, 3, 12]
cave[3] = [2, 4, 13]
cave[4] = [3, 5, 14]
cave[5] = [4, 6, 15]
cave[6] = [5, 7, 16]
cave[7] = [6, 8, 17]
cave[8] = [7, 9, 18]
cave[9] = [8, 10, 19]
cave[10] = [1, 9, 20]
cave[11] = [1, 13, 19]
cave[12] = [2, 14, 20]
cave[13] = [3, 11, 15]
cave[14] = [4, 12, 16]
cave[15] = [5, 13, 17]
cave[16] = [6, 14, 18]
cave[17] = [7, 15, 19]
cave[18] = [8, 16, 20]
cave[19] = [9, 11, 17]
cave[20] = [10, 12, 18]
return cave
cave= make_cave()
print(sorted(cave[5]))
print(sorted(cave[12]))
print(sorted(cave[19]))
Refer to attachment for the screenshot.