MOD = 998244353


def solve():
    n, x = map(int, input().split())
    dp = [[0] * 8 for _ in range(x + 1)]
    dp[0][0] = 1

    while n > 0:
        t = n % 10
        ndp = [[0] * 8 for _ in range(x + 1)]

        for i in range(x + 1):
            for le1 in range(2):
                for le2 in range(2):
                    for car in range(2):
                        for a in range(10):
                            if a > t:
                                nle1 = 1
                            elif a < t:
                                nle1 = 0
                            else:
                                nle1 = le1
                            for b in range(10):
                                if b > t:
                                    nle2 = 1
                                elif b < t:
                                    nle2 = 0
                                else:
                                    nle2 = le2
                                if car + a + b >= 10:
                                    ni = i + 1
                                    if ni == x + 1:
                                        continue
                                    ncar = 1
                                else:
                                    ni = i
                                    ncar = 0

                                nbit = (nle1 << 2) + (nle2 << 1) + ncar
                                bit = (le1 << 2) + (le2 << 1) + car

                                ndp[ni][nbit] += dp[i][bit]
                                ndp[ni][nbit] %= MOD

        dp = ndp
        n //= 10

    ans = dp[x][0] + dp[x][1]
    print(ans % MOD)


for _ in range(int(input())):
    solve()