import sys

# sys.setrecursionlimit(200005)
# sys.set_int_max_str_digits(200005)
int1 = lambda x: int(x)-1
pDB = lambda *x: print(*x, end="\n", file=sys.stderr)
p2D = lambda x: print(*x, sep="\n", end="\n\n", file=sys.stderr)
def II(): return int(sys.stdin.readline())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def LI1(): return list(map(int1, sys.stdin.readline().split()))
def LLI1(rows_number): return [LI1() for _ in range(rows_number)]
def SI(): return sys.stdin.readline().rstrip()

dij = [(0, 1), (-1, 0), (0, -1), (1, 0)]
# dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)]
# inf = -1-(-1 << 31)
inf = -1-(-1 << 62)

# md = 10**9+7
# md = 998244353
md = 499

def naive(n,m,aa):
    k=0
    for a in aa:k=k*10+a
    ans=1
    for i in range(1,k+1):
        ans+=pow(n,i,md*2)
        ans%=md*2
    return ans

def solve():
    n, m = LI()
    inv = pow(n-1, md-2, md)
    for _ in range(m):
        aa = [int(c) for c in SI()]
        # print(naive(n,m,aa))
        if n==0 or (len(aa) == 1 and aa[0] == 0):
            print(1)
            continue
        if n==1:
            ans=0
            for a in aa:
                ans=(ans*10+a)%998
            print((ans+1)%998)
        else:
            k = 0
            for a in aa:
                k = (k*10+a)%(md-1)
            k = (k+1)%(md-1)
            ans = (pow(n, k, md)-1)*inv%md
            m2 = 0 if aa[-1] & 1 and n & 1 else 1
            while ans%2 != m2: ans = (ans+md)%998
            print(ans)

for _ in range(II()): solve()