#include <iostream>
#include <string>
using namespace std;

class String {
private:
    int len;
    char* str;
    void reassign_variable(int len, char* str) {
        if (this->len != 0) {
            delete [] this->str;
        }
        this->len = len;
        this->str = new char[this->len];
        for (int i = 0; i < this->len; i++) {
            this->str[i] = str[i];
        }
    }
public:
    String(char* str) {
        len = 0;
        int i = 0;
        while (str[i]!='\0') {
            i++;
        }
        reassign_variable(i+1, str);
    }
    String() {
        len = 0;
        str = nullptr;
    }
    String& operator=(char* str) {
        int i = 0;
        while (str[i]!='\0') {
            i++;
        }
        reassign_variable(i+1, str);
        return *this;
    }
    String& operator = (String& other) {
        reassign_variable(other.lenght()+1, other.get_s());
        return *this;
    }

    String operator + (String& other) {
        String newStr;
        int summlen = this->len-1 + other.len;
        newStr.len = summlen;
        newStr.str = new char[summlen];
        for (int i = 0; i < this->len-1; i++) {
            newStr.str[i] = this->str[i];
        }
        for (int i = this->len-1; i < summlen; i++) {
            newStr.str[i] = other.str[i-(len-1)];
        }
        return newStr.get_s();
    }

    char* get_s() {
        return this->str;
    }

    int lenght() {
        return this->len-1;
    }
    ~String() {
        if (this->len!=0) {
            delete [] str;
        }
    }
};

int main() {
    String a;
    String b;
    a = "awd";
    b = "bce";
    String c;
    c = a+b;
    cout << c.get_s();
    return 0;
}