#include<bits/stdc++.h>
using namespace std;
#define FOE(i, s, t) for (int i = s; i <= t; i++)
#define FOR(i, s, t) for (int i = s; i < t; i++)
#define ff first
#define ss second
#define int long long
#define pb push_back
#define mp make_pair
#define pii pair<int,int>
#define vi vector<int>
#define mii map<int,int>
#define pqb priority_queue<int>
#define pqs priority_queue<int,vi,greater<int> >
#define setbits(x) __builtin_popcountll(x)
#define zrobits(x) __builtin_ctzll(x)
#define mod 1000000007
#define inf 1e18
#define ps(x,y) fixed<<setprecision(y)<<x
#define mk(arr,n,type) type *arr=new type[n];
#define w(x) int x; cin>>x; while(x--)
#define FIO ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int dp[12][92][2][92];
vi v;
int func(int pos, int sum, int p, int num, int k)
{
if (pos >= v.size())
{
if (sum % k == 0 && num % k == 0)
return 1;
return 0;
}
if (dp[pos][sum][p][num] != -1)
return dp[pos][sum][p][num];
int maxV = 9;
if (p == 0)
maxV = v[pos];
int res = 0;
FOR(i, 0, maxV + 1)
{
int temp_p = p;
if (temp_p==0 && i < v[pos])
temp_p = 1;
int temp_num = (10 * num + i) % k;
int temp_sum = (sum + i) % k;
res += func(pos + 1, temp_sum, temp_p, temp_num, k);
}
return dp[pos][sum][p][num] = res;
}
int funcUtil(int a, int k)
{
v.clear();
while (a)
{
v.pb(a % 10);
a = a / 10;
}
memset(dp, -1, sizeof(dp));
reverse(v.begin(), v.end());
return func(0, 0, 0, 0, k);
}
void solve()
{
int a, b, k;
cin >> a >> b >> k;
if (k >= 90)
{
cout << 0 << "\n";
return ;
}
cout << funcUtil(b, k) - funcUtil(a - 1, k) << "\n";
}
int32_t main()
{
FIO;
#ifndef ONLINE_JUDGE
freopen("input1.txt", "r", stdin);
freopen("output1.txt", "w", stdout);
#endif
w(tc) {
solve();
}
}
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