import java.util.*;
import java.math.BigDecimal;
public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
        Scanner sc = new Scanner(System.in);
       BigDecimal k = BigDecimal.valueOf(sc.nextLong());       
      BigDecimal money = BigDecimal.valueOf(100.0);  
       BigDecimal a = BigDecimal.valueOf(1.01);
        int cnt = 0;
        while(money.compareTo(k) == -1){
        	cnt+=1;
        	money=money.multiply(a);
            BigDecimal bd1 = money.setScale(0, BigDecimal.ROUND_DOWN);
          money = bd1;
        }
   	System.out.println(cnt);            

	}
} import java.util.*; util.* java import java.math.BigDecimal; BigDecimal java.math public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
        Scanner sc = new Scanner(System.in);
       BigDecimal k = BigDecimal.valueOf(sc.nextLong());       
      BigDecimal money = BigDecimal.valueOf(100.0);  
       BigDecimal a = BigDecimal.valueOf(1.01);
        int cnt = 0;
        while(money.compareTo(k) == -1){
        	cnt+=1;
        	money=money.multiply(a);
            BigDecimal bd1 = money.setScale(0, BigDecimal.ROUND_DOWN);
          money = bd1;
        }
   	System.out.println(cnt);            

	}
} Main public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
        Scanner sc = new Scanner(System.in);
       BigDecimal k = BigDecimal.valueOf(sc.nextLong());       
      BigDecimal money = BigDecimal.valueOf(100.0);  
       BigDecimal a = BigDecimal.valueOf(1.01);
        int cnt = 0;
        while(money.compareTo(k) == -1){
        	cnt+=1;
        	money=money.multiply(a);
            BigDecimal bd1 = money.setScale(0, BigDecimal.ROUND_DOWN);
          money = bd1;
        }
   	System.out.println(cnt);            

	} main {
		// TODO 自動生成されたメソッド・スタブ
        Scanner sc = new Scanner(System.in);
       BigDecimal k = BigDecimal.valueOf(sc.nextLong());       
      BigDecimal money = BigDecimal.valueOf(100.0);  
       BigDecimal a = BigDecimal.valueOf(1.01);
        int cnt = 0;
        while(money.compareTo(k) == -1){
        	cnt+=1;
        	money=money.multiply(a);
            BigDecimal bd1 = money.setScale(0, BigDecimal.ROUND_DOWN);
          money = bd1;
        }
   	System.out.println(cnt);            

	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) BigDecimal k = BigDecimal.valueOf(sc.nextLong()); k BigDecimal.valueOf(sc.nextLong()) BigDecimal.valueOf BigDecimal sc.nextLong() sc.nextLong sc BigDecimal money = BigDecimal.valueOf(100.0); money BigDecimal.valueOf(100.0) BigDecimal.valueOf BigDecimal 100.0 BigDecimal a = BigDecimal.valueOf(1.01); a BigDecimal.valueOf(1.01) BigDecimal.valueOf BigDecimal 1.01 int cnt = 0; cnt 0 while(money.compareTo(k) == -1){
        	cnt+=1;
        	money=money.multiply(a);
            BigDecimal bd1 = money.setScale(0, BigDecimal.ROUND_DOWN);
          money = bd1;
        } money.compareTo(k) == -1 money.compareTo(k) money.compareTo money k -1 1 {
        	cnt+=1;
        	money=money.multiply(a);
            BigDecimal bd1 = money.setScale(0, BigDecimal.ROUND_DOWN);
          money = bd1;
        } cnt+=1 cnt 1 money=money.multiply(a) money money.multiply(a) money.multiply money a BigDecimal bd1 = money.setScale(0, BigDecimal.ROUND_DOWN); bd1 money.setScale(0, BigDecimal.ROUND_DOWN) money.setScale money 0 BigDecimal.ROUND_DOWN BigDecimal BigDecimal.ROUND_DOWN money = bd1 money bd1 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) {
		// TODO 自動生成されたメソッド・スタブ
        Scanner sc = new Scanner(System.in);
       BigDecimal k = BigDecimal.valueOf(sc.nextLong());       
      BigDecimal money = BigDecimal.valueOf(100.0);  
       BigDecimal a = BigDecimal.valueOf(1.01);
        int cnt = 0;
        while(money.compareTo(k) == -1){
        	cnt+=1;
        	money=money.multiply(a);
            BigDecimal bd1 = money.setScale(0, BigDecimal.ROUND_DOWN);
          money = bd1;
        }
   	System.out.println(cnt);            

	}
} public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
        Scanner sc = new Scanner(System.in);
       BigDecimal k = BigDecimal.valueOf(sc.nextLong());       
      BigDecimal money = BigDecimal.valueOf(100.0);  
       BigDecimal a = BigDecimal.valueOf(1.01);
        int cnt = 0;
        while(money.compareTo(k) == -1){
        	cnt+=1;
        	money=money.multiply(a);
            BigDecimal bd1 = money.setScale(0, BigDecimal.ROUND_DOWN);
          money = bd1;
        }
   	System.out.println(cnt);            

	}
} Main
import java.util.*;
import java.math.BigDecimal;
public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
        Scanner sc = new Scanner(System.in);
       BigDecimal k = BigDecimal.valueOf(sc.nextLong());       
      BigDecimal money = BigDecimal.valueOf(100.0);  
       BigDecimal a = BigDecimal.valueOf(1.01);
        int cnt = 0;
        while(money.compareTo(k) == -1){
        	cnt+=1;
        	money=money.multiply(a);
            BigDecimal bd1 = money.setScale(0, BigDecimal.ROUND_DOWN);
          money = bd1;
        }
   	System.out.println(cnt);            

	}
}