#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <string>
#include <vector>
using namespace std;
int main() {
	string a,b;
	while(cin>>a>>b){
		string c;
		reverse(b.begin(), b.end());
		int j=1;
		for(int i=0;i<b.size();i++){
			a.insert(a.begin()+i+j, b[i]);
			j++;
		}
		cout<<a<<endl;
	}
	return 0;
}