#include <iostream>
#include <cstdlib>
#include <cstring>
using namespace std;

void permutate(char &);
int getlength(char []);

int main ()
{
	char array[20];
	
	int length=getlength(array);


	cin>>array;

	
	cout<<length
		<<endl;

	

	/*for (int i=0;i<200;i++)
	{
	cout<<array[i];
	}
*/
	




	system("PAUSE");

}

void permutate(char &array)
{




}

int getlength(char array[])
{
	int i=0;
	int count=0;

	while (array[i] != '\0')
	{
		count++;
		i++;
	
	}

	return count;



}