#include <iostream>
using namespace std;
 
int main() {
	int n=0;
	std::string str { "Hellloo" };
    std::string str2 = str;
 
for(int i=0;i<str2.size();i++){
    for(int j=i+1;j<str2.size();j++){
        std::cout<<i<<" "<<j<<"->"<<(char)std::tolower(str2[i]) <<" "<< (char)std::tolower(str2[j])<<": " << str2<<endl; 
        if(std::tolower(str2[i]) == std::tolower(str2[j]) && j != i){
            cout<<"Erasure before: "<<i<<" "<<j<<" "<<str2.size()<<endl;
            n++;
            str2.erase(str2.begin() + j);
            str2.erase(str2.begin() + i);
 
            //i--;
            j=i+1;//j--;
            cout<<"Erasure after: "<<i<<" "<<j<<" "<<str2.size()<<endl;
        }
 
    }
}
    cout << str2<<endl; 
	return 0;
}

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