CF1982B

#include <bits/stdc++.h>
#define int long long
using namespace std;
int t;
int x, y, k;
signed main()
{
    cin >> t;
    while(t--)
    {
        cin >> x >> y >> k;
        while(k > 0 && x != 1)    //当实验次数不为0且x不为1时
        {
            int cnt = (x + y - 1) / y * y;
            k -= cnt - x;
            x = cnt;
            while (x % y == 0) x /= y;
        }
        cout << x << '\n';
    }
    return 0;
}