x = [1,2,3] x.send :[]=,0,2 x[0] + x.[](1) + x.send(:[],2)
x = [1, 2, 3] x[0] = 2 x[0] + x[1] + x[2]
Image may be NSFW.
Clik here to view.

Clik here to view.

x = [1,2,3] x.send :[]=,0,2 x[0] + x.[](1) + x.send(:[],2)
x = [1, 2, 3] x[0] = 2 x[0] + x[1] + x[2]