50求救

#include <iostream>
using namespace std;
int main() {
    int n, i, s = 0;
    cin >> n;
    cin >> i;
    bool t;
    for (int j = 1;; j++) {
        s = j * n + i;
        t = true;
        for(int k = 1; k < n; k++) {
            if (s % (n - 1) == 1) {
                t = false;
                break;
            }
            s = s * n / (n - 1) + i;
        }
        if (t) {
            cout << s;
            return 0;
        }
    }
}