Monistus

#include <bits/stdc++.h>
#include <unordered_set>
#include <iostream>

using namespace std;
typedef long long ll;
typedef long unsigned int ui;



string operaatio(string jono) {
    bool naa;
    do {
        naa = true;
        for (size_t i = 0; i < jono.length(); i++) {
            if (isdigit(jono[i])) {
                size_t count = jono[i] - '0';
                jono = jono.substr(0, i) + jono.substr(i + 1, count) + jono.substr(i + 1);
                naa = false;
                break;
            }
        }
    } while (!naa);

    return jono;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(NULL);
	std::cout.tie(NULL);

    string jono;
    cin >> jono;

	cout << operaatio(jono) << endl;

    return 0;

}

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: ACCEPTED

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: ACCEPTED

Test 6

Group: 1, 2

Verdict: ACCEPTED

Test 7

Group: 1, 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 9

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 10

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 11

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 12

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 13

Group: 2

Verdict: TIME LIMIT EXCEEDED

Test 14

Group: 2

Verdict: TIME LIMIT EXCEEDED