func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long mod = 998244353, N = 3e5 + 6;   long long n, k, t;   void solve() {     cin >> n >> k;     long long t = 1;     while (t * 10 <= n) t *= 10;     while (k > 1) {       t = 1;       while (t * 10 <= n) t *= 10;       while (n - t < k - 1) t /= 10;       cout << t <<    ;       n -= t;       k--;     }     cout << n;   }   int main() {     long long tt = 1;     cin >> tt;     while (tt--) {       solve();       cout <<   n ;     }   }   