#include <iostream>
#include <string.h>

using namespace std;

int main()
{
    char c[256], s[256];
    int i = 0;
    cin >> c[i];
    while (c[i] != ' ') {
        i++;
        cin >> c[i];
    }
    i = 0;
    while ( s[i] != '\n') {
        i++;
        cin >> s[i];
    }
    cout << s << ' ' << c;
}