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package javaprograming;

import java.util.Scanner;

/**

*

* @author rohan

*/

public class NumberDigits {

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

int n = scan.nextInt();

int count=0;

for(int i=0;i<n;i++){

count++;

}

System.out.println(count);

}

}