#include <iostream>

#include<bits/stdc++.h>

using namespace std;

int main(){

// string s("Lokesh Singh is my name");

// cout<<"The length of string is: "<<s.length()<<endl;

// cout<<s<<endl;

// s.clear();

// cout<<"Printing string after clearing"<<s<<endl;

// cout<<"The length of string is after clearing : "<<s.length()<<endl;

// string h(5 ,'*');

// cout<<h<<endl;

// string s1("Lokesh ");

// string s2("Singh");

// s1.append(s2);

// cout<<s1<<endl;

// string s3 = s1.substr(0,6);

// cout<<s3<<endl;

string s1 = "Lokesh Singh is learning coding";

s1.erase(1,3);

cout<<s1<<endl;;

cout<<s1.find("learn")<<endl;;

return 0;

}