Array_1

#!/usr/local/bin/python
a = [1,2,3,4,5]
a[1] = 6 # a = [1,6,3,4,5]
a[2:4] = [10,11] # a = [1,6,10,11,5]
a[3:4] = [-1,-2,-3] # a = [1,6,10,-1,-2,-3,5]
a[2:] = [0] # a = [1,6,0]