main.cpp

#include <iostream>
#include <list>

using namespace std;

string convert(int n, int m) {
    list<int> num;
    while (n > 0) {
        num.push_front(n % m);
        n /= m;
    }
    string ans;
    for (int a : num) {
        if (a > 10) {
            ans.push_back((char) a + 87);
        } else {
            ans.append(to_string(a));
        }
    }
    return ans;
}

int main() {
    int n = 0, m = 0;
    while (cin >> n >> m) {
        cout << "The base " << m << " representation of " << n << " is " << convert(n, m) << "." << endl;
    }
    return 0;
}