#include <bits/stdc++.h>
using namespace std;
int x,y,a[20],b[20],i,ucx,oglx,ogly,ucy,cx,cy;
int main()
{
    cin>>x>>y;
    cx=x;
    cy=y;
    ucx=x%10;
    ucy=y%10;
    while(cx)
        oglx=oglx*10+cx%10 , cx/=10;
    while(cy)
        ogly=ogly*10+cy%10 , cy/=10;

    cout<<ucy;
    cx=oglx;
    oglx/=10;
    while(oglx>9)
    {
        cout<<oglx%10;
        oglx/=10;
    }
    cout<<ogly%10<<" ";

    cout<<ucx;
    ogly/=10;
    while(ogly>9)
    {
        cout<<ogly%10;
        ogly/=10;
    }
    cout<<cx%10;
    return 0;
}