题解 | #又一版 A+B#

#include<cstdio>
#include<stack>
using namespace std;
int main(){
	long long m, a, b;
	while (scanf("%lld %lld %lld", &m, &a, &b) != EOF){
		if (a == 0 && b == 0){
			printf("0");
			break;
		}
		long long k = a + b;
		stack<int> hhh;
		while (k != 0){
			long long w;
			w = k%m;
			hhh.push(w);
			k = k / m;
		}
		while (!hhh.empty()){
			printf("%d", hhh.top());
			hhh.pop();
		}
		printf("\n");
	}
}