## compute_input.py
import sys, json, numpy as np
#Read data from stdin
def read_in():
lines = sys.stdin.readlines()
#Since our input would only be having one line, parse our JSON data from that
return json.loads(lines[0])
def main():
#get our data as an array from read_in()
lines = read_in()
#create a numpy array
np_lines = np.array(lines)
#use numpys sum method to find sum of all elements in the array
lines_sum = np.sum(np_lines)
#return the sum to the output stream
print lines_sum
#start process
if __name__ == '__main__':
main()