import sys

int1 = lambda x: int(x) - 1
# input = lambda: sys.stdin.buffer.readline()
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
i1 = lambda: int1(input())
mi = lambda: map(int, input().split())
mi1 = lambda: map(int1, input().split())
li = lambda: list(mi())
li1 = lambda: list(mi1())
lli = lambda n: [li() for _ in range(n)]
inc = lambda x: x + 1
dec = lambda x: x - 1
INF = float("inf")
# mod = int(1e9 + 7)
mod = 998244353

n = ii()
assert 1 <= n <= 2 * 10**5

a = li()
assert all(abs(aa) <= 10**9 for aa in a)

print(sum(a))