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- //
- // main.cpp
- // olymp_in
- //
- // Created by Kadir Kadyrov on 19.10.2020.
- // Copyright © 2020 Kadir Kadyrov. All rights reserved.
- //
- #include <iostream>
- #include <algorithm>
- #include <string>
- #include <cstdio>
- #include <queue>
- #include <map>
- #include <vector>
- #include <stack>
- using namespace std;
- int main() {
- int n, k;
- /// var 1
- // for (int i = 0; i < k; i++) {
- //
- // }
- cin >> n >> k;
- while(k--) {
- if(n % 10 == 0) {
- n /= 10;
- } else {
- n--;
- }
- }
- cout << n << endl;
- }
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