content: import java.io.*;
  import java.math.*;
  import java.security.*;
  import java.text.*;
  import java.util.*;
  import java.util.concurrent.*;
  import java.util.regex.*;
  
  public class Solution {
  
      // aVeryBigSum function
      static long aVeryBigSum(long[] ar) {
          long sum=0;
          // iterating elements of array
          for(long val : ar)
          sum+= val; // adding elements of array
          return sum; 
  
      }
  
      private static final Scanner scanner = new Scanner(System.in);
  
      // main function
      public static void main(String[] args) throws IOException {
          BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));
  
          int arCount = scanner.nextInt(); // array size
          scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
  
          long[] ar = new long[arCount];
  
          String[] arItems = scanner.nextLine().split(" ");
          scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");
  
          for (int i = 0; i < arCount; i++) {
              long arItem = Long.parseLong(arItems[i]);
              ar[i] = arItem;
          }
  
          long result = aVeryBigSum(ar); // function call
  
          bufferedWriter.write(String.valueOf(result));
          bufferedWriter.newLine();
  
          bufferedWriter.close();
  
          scanner.close();
      }
  }
  