/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		int n;
		//System.out.println("enter a number");
		Scanner sc =  new Scanner(System.in);
		n = sc.nextInt();
		System.out.println("the entered number is " + n);
		int nod = (int)((Math.log(n)/Math.log(10))) +1;
		System.out.println(nod);
	}
}

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MzI=

32