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What does it take to be a ""? Someone made up a passing phrase: "Can open the brain to get on, write the program to move the mouth." As one of the events of the main exhibition of Shanghai Science and Technology Festival, the final of the 2017 Shanghai International Hacker Competition began to compete on the 25th. Primary school, secondary school and professional groups ...... large and small "s" appeared together, inspiring unlimited creativity. What kind of ideas did these "s" bring to the competition? Check it out together.