#include <iostream>
#include <string>
using namespace std;
int main() {
string s1, s2;
getline(cin, s1);
getline(cin, s2);
// write your code here......
cout<<s1+s2<<endl;
return 0;
}
#include <iostream>
#include <string>
using namespace std;
int main() {
string s1, s2;
getline(cin, s1);
getline(cin, s2);
// write your code here......
cout<<s1+s2<<endl;
return 0;
}