import java.io.*;
import java.util.*;

public class Main {

    public static void main(String[] args) throws Exception {
        Scanner s = new Scanner (System.in);
        int n = s.nextInt();
        int m = s.nextInt();
        ArrayList<String> paths = getMazePaths(1, 1, n , m);
        System.out.println(paths);
    }

    // sr - source row
    // sc - source column
    // dr - destination row
    // dc - destination column
    public static ArrayList<String> getMazePaths(int sr, int sc, int dr, int dc) {
        if (sr == dr && sc == dc){
            ArrayList<String> bres = new ArrayList<>();
            bres.add("");
            return bres;
        }

        ArrayList<String> hpaths = new ArrayList<>();
        ArrayList<String> vpaths = new ArrayList<>();

        if (sr < dr){
            hpaths = getMazePaths(sr, sc + 1, dr, dc);
        }
        if(sc < dc){
            vpaths = getMazePaths(sr + 1, sc, dr, dc);
        }
        ArrayList<String> paths = new ArrayList<>();

        for (String hpath: hpaths){
            paths.add("h" + hpath);
        }

        for (String vpath: vpaths){
            paths.add("v" + vpath);
        }
        return paths;
    }

}