#include<stdio.h>
int main()
{
	char S[110];
	char T[110];
	
	scanf("%s%s", S, T);
	printf("%s%s", T, S);
return 0;
}
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <string>
#include <sstream>
#include <complex>
#include <vector>
#include <list>
#include <queue>
#include <deque>
#include <stack>
#include <map>
#include <set>
#include <fstream>
#include <numeric>
using namespace std;
typedef long long int ll;

#define EPS (1e-7)
#define INF 1e18
#define max(p,q)((p)>(q)?(p):(q))
#define min(p,q)((p)<(q)?(p):(q))
#define PI (acos(-1))

#define REP(i, n) for(int i = 0; i < (int)(n); i++)
#define rep(i, init, n) for(int i = init; i <(int)(n); i++)

int main() {
    int a, b;
    cin >> a >> b;
    cout << (a * b) << endl; 

    return 0;
}