cpFast.py

from sys import stdin, stdout 
 
# suppose a function called main() and
# all the operations are performed
def main():
 
    # input via readline method
    n = stdin.readline()
 
    # array input similar method
    arr = [int(x) for x in stdin.readline().split()]
 
    #initialize variable
    summation = 0
     
    # calculate sum
    for x in arr:
        summation += x
 
    # could use inbuilt summation = sum(arr)
 
    # print answer via write
    # write method writes only
    # string operations
    # so we need to convert any
    # data into string for input
    stdout.write(str(summation))
 
# call the main method
if __name__ == "__main__":
    main()