a = range(3,13,3)
b = tuple(a)
print(b)

a = (3,6,9)
a.append(12)
print(a)

p = [[3,6],[9,12]]
q = []
for i in range(2):
    for j in range(2):
        q.append(p[i][j])
print(tuple(q))

h = {3,3,6,6,9}
print(tuple(h))