# Difficult Puzzle! 100 people standing in a circle in an order 1 to 100....Which number survives at the last?100 people standing in a circle in an order 1 to 100. No.1 person has a sword. He kills next person (i.e. No. 2 )and gives sword to next to next (i.e no.3). All person does the same until only 1 survives. Which number survives at the last?

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