import java.util.*;

public class Main {
    
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        int count = 0;
        while(n / k != 0){
            count++;
            n /= k;
        }
        System.out.println(count +1);
    }
} import java.util.*; util.* java public class Main {
    
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        int count = 0;
        while(n / k != 0){
            count++;
            n /= k;
        }
        System.out.println(count +1);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        int count = 0;
        while(n / k != 0){
            count++;
            n /= k;
        }
        System.out.println(count +1);
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        int count = 0;
        while(n / k != 0){
            count++;
            n /= k;
        }
        System.out.println(count +1);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int k = sc.nextInt(); k sc.nextInt() sc.nextInt sc int count = 0; count 0 while(n / k != 0){
            count++;
            n /= k;
        } n / k != 0 n / k n k 0 {
            count++;
            n /= k;
        } count++ count n /= k n k System.out.println(count +1) System.out.println System.out System System.out count +1 count 1 String[] args args public class Main {
    
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        int count = 0;
        while(n / k != 0){
            count++;
            n /= k;
        }
        System.out.println(count +1);
    }
} public class Main {
    
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        int count = 0;
        while(n / k != 0){
            count++;
            n /= k;
        }
        System.out.println(count +1);
    }
} Main
import java.util.*;

public class Main {
    
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        int count = 0;
        while(n / k != 0){
            count++;
            n /= k;
        }
        System.out.println(count +1);
    }
}
