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