#include <bits/stdc++.h>

using namespace std;

int main() {
    int p, q, n;
    cin >> p >> n >> q;
    //现将P进制转换为十进制
    int t = 0, f = 1;
    while (n != 0) {
        t = (n % 10) * f + t;
        f = f * p;
        n = n / 10;
    }
    //现在将十进制转换为Q进制
    int y[100], num = 0;
    do {
        y[num++] = t % q;
        t = t / q;
    } while (t != 0);
    //输出结果
    for (int i = num - 1; i >= 0; i--) {
        cout << y[i];
    }
    return 0;
}