>>> import castell  

>>> lhabs = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
>>> lportes = [(0, 12), (0, 4), (0, 13), (1, 3), (1, 13), (3, 13), (4, 13), (7, 14)]
>>> c = castell.habitacions(lhabs, lportes)
>>> p, q = castell.hi_puc_anar(c, 0, 1)  
>>> p
True
>>> q
2
>>> p, q = castell.hi_puc_anar(c, 0, 2)  
>>> p
False
>>> q
0
>>> p, q = castell.hi_puc_anar(c, 1, 13)  
>>> p
True
>>> q
1
>>> p, q = castell.hi_puc_anar(c, 7, 14)  
>>> p
True
>>> q
1
>>> p, q = castell.hi_puc_anar(c, 8, 0)  
>>> p
False
>>> q
0
>>> p, q = castell.hi_puc_anar(c, 12, 0)  
>>> p
True
>>> q
1
>>> p, q = castell.hi_puc_anar(c, 12, 1)  
>>> p
True
>>> q
3