#include <iostream>
#include <cmath>
#define maxsize 100000
using namespace std;
 
int main()
{
 
	int iteration = 0;				// Number Of Iteration in loops.
	int elements[maxsize];			// Elements to enter.
	int outArr[maxsize];			// To Perform A Operation On the output.
	long long int summation = 0;	// Get summation to print.
 
	cin >> iteration;
 
	if (iteration >= 1 && iteration <= 100000)	// Number Of Iteration Checking.
	{
		for (int i = 0; i < iteration; i++)		// Iteration to get values.
		{
			cin >> elements[i];
		}
 
		for (int i = 0; i < iteration; i++)		// Loop to perform operation.
		{
			summation += elements[i];
		}
		cout << summation << endl;
	}
 
	return 0;
}

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