#include <stdio.h> int main() { int m, a, b; while (scanf("%d %d %d", &m, &a, &b) != EOF) { if (m == 0) { return 0; } long long num = a + b; int result[200000]; int resTop = 0; if (num == 0) { result[resTop++] = 0; } while (num != 0) { result[resTop++] = num % m; num /= m; } for (int i = resTop - 1; i >= 0; i--) { printf("%d", result[i]); } printf("\n"); } return 0; }