#include <iostream>
#include <string>
using namespace std;
 
int main()
{
    string str1, str2;
    cout << "Primul sir de caractere: ";
    getline(cin, str1);
    cout << "Al doilea sir de caractere: ";
    getline(cin, str2);
    str1.append(str2);
    cout << "Sir concatenat: " << str1;
    return 0;
}