// Page 111 - 112

import java.util.Scanner;
class Prog_9_1
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);
		double[] x=new double[10];
		int i;
		for ( i = 0; i < 10; i ++ )
		     x[i]=input.nextDouble();
		double result=0.0;
		result = SumUp(x);     // method call
		System.out.println("total is "+result);
	}

	private static double SumUp ( double num[] )
	{
		int s;
		double total = 0.0;
		for ( s = 0; s < 10; s ++ )
			total += num[s];
		return total;
	}
}