简单

#include <bits/stdc++.h>
using namespace std;

int main() {
int k,n;
cin >>k >>n;

string s;

if(n == 0){
    cout << 0;
    return 0;
}
while (n!=0) {
    int rem = n % k;
    char ch;
    if(rem < 10){
        ch = char(rem + 48);
    }else{
        ch = char(rem - 10 + 'A');
    }
    s = ch + s;
    n /= k;
}
cout << s;

return 0;

}