import java.util.*;
public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int l = sc.nextInt();
        int cnt = 0;

        while(n > 0){
            cnt++;
            n=(n/l);
        }
        System.out.println(cnt);
    }
} 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 l = sc.nextInt();
        int cnt = 0;

        while(n > 0){
            cnt++;
            n=(n/l);
        }
        System.out.println(cnt);
    }
} Main public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int l = sc.nextInt();
        int cnt = 0;

        while(n > 0){
            cnt++;
            n=(n/l);
        }
        System.out.println(cnt);
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int l = sc.nextInt();
        int cnt = 0;

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

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

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

        while(n > 0){
            cnt++;
            n=(n/l);
        }
        System.out.println(cnt);
    }
}
