names = ['bob', 'ho', 'zahara', 'amitabha', 'dov', 'maria']

# Lists #1a.
print(names[2:5])

# Lists #1b.
print(names[0:1])

# Lists #1c.
print(names[3:len(names)])

# Lists #2
names.remove('ho')
print(names)

# Lists #3
names.insert(0,"zero")
print(names)

# Lists #4
names.sort(reverse=True)
print(names)

# Lists #5
def every_third(L):
    newL = []
    for i in range(0,len(L),3):
        newL.append(L[i])
    return newL

print(every_third(names))
        
# Lists #6
def every_ith(L,i):
    newL = []
    for j in range(0,len(L),i):
        newL.append(L[j])
    return newL

print(every_ith(names, 2))