Double the Last Number

[quiznos00]

356 811 923 176 489 970 264 571 492 362 373 784 095 686 656


+356 811 923 176 489 970 264 571 492 362 373 784 095 686 656


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713 623 846 352 979 940 529 142 984 724 747 568 191 373 312


Or 2^{(number of levels in CC1)}