import sys

if __name__ == '__main__':
    print(sum(map(float, sys.argv[1:])))

import sys

def add_all(nums):
    return sum(nums)

if __name__ == '__main__':
    command = sys.argv[1]
    nums = map(float, sys.argv[2:])
    if command == 'add':
    print(add_all(nums))  

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