list = [1,2,3,4,5,6]
print(list)
list[2]=11
print(list)
list[1:5] = [89,78]
print(list)
print()
list_1=[0,1,2,3,4]
print(list_1,end="")
del list_1[0]
print(list_1,end="")
del list_1[3]
print(list_1,end="")