#include<iostream>
using namespace std;
int main()
{
	cout<<"put the Character string"<<endl;
	char cha[21];
	cin>>cha;
	char* point_char=cha;
	int length=0;
	for(;*point_char!='\0';length++,point_char++);
	cout<<"length is "<<length<<endl;
	return 0;
}