#include<iostream> #include<string> #include<vector> using namespace std; //习题6.2 又一版A+B int main() { int m, a, b; long long res; while (cin >> m) { if (m == 0) { break; } cin >> a >> b; res = a + b; if (res == 0) { cout << 0 << endl; continue; } vector<int> nums; while (res != 0) { nums.push_back(res % m); res /= m; } for (int i = nums.size() - 1; i >= 0; i--) { cout << nums[i]; } cout << endl; } return 0; }