#include <bits/stdc++.h>
#define int int64_t

using namespace std;

string update (string s)
{
    if (s == "1")
        return "11";
    int l = 1;
    bool b = 0;
    string s1;
    for (int i = 1; i < s.size(); i++)
    {
        if (s [i] == s [i - 1])
        {
            if (b == 0)
            {
                b = 1;
                l++;
            }
            else
                l++;
        }
        else
        {
            s1 += to_string(l);
            s1 += s [i - 1];
            l = 1;
        }
    }
    s1 += to_string(l);
    s1 += s.back();
    return s1;
}

string fix(string s, int m)
{
    if (m >= s.size())
        return s;
    else
        return s.substr(s.size() - m, s.size());
}

int32_t main()
{
    int n, m, k = 1;
    cin >> n >> m;
    string s = "1";
    while (k < n && s.size() <= m)
    {
        s = update(s);
        k++;
    }
    while (k % 4 != n % 4)
    {
        s = update(s);
        k++;
    }
    cout << fix(s, m);
}