#include <iostream>
#include <string.h>
using namespace std;
int main(){
string str = "OceanLabz";
//By Function
//Length of string using size() methode
cout<< str.size() <<endl;
//Length of string using length methode
cout<< str.length() <<endl;
//By logic
//1
int i=0;
while(str[i])
i++;
cout<< i << endl;
//2
for( i = 0; str[i]; i++);
cout<< i << endl;
return 0;
}