>>> x=range(1,10)>>> x[1, 2, 3, 4, 5, 6, 7, 8, 9]>>> sum([ i*i for i in x])285>>> y=range(10,1,-1)>>> y[10, 9, 8, 7, 6, 5, 4, 3, 2]>>> [x[i]*y[i] for i in range(0,9)][10, 18, 24, 28, 30, 30, 28, 24, 18]
