from bisect import bisect_left, bisect_right
from pickletools import read_unicodestringnl
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)]

INF = float("inf")
# mod = int(1e9 + 7)
mod = 998244353

f = [0] * 60

for _ in range(ii()):
    n = ii()
    ff = li()
    for i in range(n):
        if ff[i] == 1:
            f[i] = 1
    print(sum(f))