#include <bits/stdc++.h>
#define int long long
using namespace std;
int n, k;
char c[100001];
bool flag, flagg;
string ssss;
signed main()
{
    scanf("%lld %lld\n%s", &n, &k, c + 1);
    if (n <= 2500)
    {
        k++;
        for (int i = 1; i <= n; i++)
        {
            flagg = false;
            ssss += c[i];
            for (int j = 0; j <= i / k; j++)
            {
                string s = "", ss = "", sss = "";
                flag = true;
                for (int l = 1; l <= j; l++)
                {
                    s += c[l];
                }
                int zl = i - j * k;
                if (zl % (k - 1) != 0)
                {
                    flag = false;
                    continue;
                }
                zl /= (k - 1);
                for (int l = j + 1; l <= j + zl; l++)
                {
                    ss += c[l];
                }
                sss = s;
                for (int l = 1; l < k; l++)
                {
                    sss = sss + ss + s;
                }
                //cout<<sss<<' '<<ss<<' ' <<s<<endl;
                if (ssss != sss)
                {
                    flag = false;
                }
                else
                {
                    flagg = true;
                    break;
                }
            }
            if (flagg)
                printf("1");
            else
                printf("0");
        }
    }
    else
    {
        int zero=k*2-1;
        int one=3,cnt=0;
        while(1)
        {
            for (int i = 1; i <= zero; i++)
            {
                cnt++;
                printf("0");
                if(cnt==n)
                    break;
            }
            for (int i = 1; i <= one; i++)
            {
                cnt++;
                printf("1");
                if(cnt==n)
                    break;
            }
            zero-=2;
            one+=2;
            if(zero<=0)
                break;
        }
        for(int i=cnt+1;i<=n;i++)
        {
            printf("1");
        }
    }
    return 0;
}