C. Decimal sum
time limit per test
2 seconds
memory limit per test
64 megabytes
input
standard input
output
standard output

You are given an array of integer numbers. Calculate the sum of its elements.

Input

The first line of the input contains an integer n (1 ≤ n ≤ 100) — the size of the array. Next n lines contain the elements of the array, one per line. Each element is an integer between 1 and 100, inclusive.

Output

Output the sum of the elements of the array.

Examples
Input
512345
Output
15
Input
710054586142030
Output
300