Points for a Perfect Scorer

To all the players, welcome to PC Koshien. This year marks the 10th anniversary of the PC Koshien, but the number of problems and the total score vary from year to year. Each problem is scored according to its difficulty level. Create a program that outputs the sum of the scores given for each of the 10 problems.

Input

The input is given in the following format.

s1
s2
.
.
s10

The input consists of 10 lines, where the i-th line is given as an integer s_i (0≤ s_i ≤ 100) representing the score of problem i.

Output

Output the total score on one line.

Sample Input 1

1
2
3
4
5
6
7
8
9
10

Sample Output 1

55

Sample Input 2

4
4
8
8
8
10
10
12
16
20

Sample Output 2

100

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