#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;

const int INF = 1e9;
const ll bINF = 1e16;
const double EPS = 1e-7;
const double PI = 3.1415926;

int main() {
    freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);

    ios_base::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);

    string s;
    int k;

    cin >> s >> k;

    if (k > 0) {
        string sFixed = s;

        for (int i = 0; i < k - 1; ++i) {
            if ((int)s.size() > 1023) {
                cout << s.substr(0, 1023);

                return 0;
            }

            int n = (int)s.size(), m = (int)sFixed.size();

            if (n + m > 1023) {
                int ost = 1023 - n;

                cout << s + sFixed.substr(0, ost);

                return 0;
            }
            else {
                s += sFixed;
            }
        }

        cout << s;
    }
    else {
        k = -k;

        if ((int)s.size() % k != 0) {
            cout << "NO SOLUTION";

            return 0;
        }

        int f = (int)s.size() / k;
        string st = s.substr(0, f);
        string stt = st;

        for (int i = 0; i < k - 1; ++i) {
            stt += st;
        }

        if (stt == s) {
            cout << st;
        }
        else {
            cout << "NO SOLUTION";
        }
    }

    return 0;
}