#Copy &deepcopy
from copyimport deepcopy
list1=[1,2,3,4]
list2=['a','b',list1]
list3=list2.copy()
#['a', 'b', [1, 2, 3, 4]]
list4=deepcopy(list2)
#['a', 'b', [1, 2, 3, 4]]
list1=[1,2]
print(list3)
#['a', 'b', [1, 2, 3, 4]]
print(list4)
#['a', 'b', [1, 2, 3, 4]]
list1.append('c')
print(list1)
#[1, 2, 'c']
print(list3)
#['a', 'b', [1, 2, 3, 4]]
print(list4)
#['a', 'b', [1, 2, 3, 4]]
list1=[i*ifor iin range(1,16)if i%2!=0]
print(list1)
#[1, 9, 25, 49, 81, 121, 169, 225]
list3=[i*jfor iin range(1,10)for jin range(i,10)]
print(list3)
#[1, 2, 3, 4, 5, 6, 7, 8, 9, 4, 6, 8, 10, 12, 14, 16, 18, 9, 12, 15, 18, 21, 24, 27, 16, 20, 24, 28, 32, 36, 25, 30, 35, 40, 45, 36, 42, 48, 54, 49, 56, 63, 64, 72, 81]
