#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;
}



京公网安备 11010502036488号