using System;
using System.Collections.Generic;
using System.Linq;

public class Program
{
    private int N, M;
    private char[] S;

    public void Solve()
    {
        var sc = new Scanner();
        N = sc.NextInt();
        M = sc.NextInt();
        S = sc.Next().ToCharArray();

        var cost = new int[N + 1];
        for (int i = 0; i <= N; i++)
        {
            cost[i] = int.MaxValue;
        }

        cost[N] = 0;
        int pos = N;
        while (pos > 0)
        {
            int np = -1;
            bool f = false;
            for (int i = 1; i <= M; i++)
            {
                int pp = pos - i;
                if (pp < 0) break;
                if (S[pp] == '1') continue;
                cost[pp] = cost[pos] + 1;
                np = pp;
                f = true;
            }

            if (!f)
            {
                Console.WriteLine("-1");
                return;
            }

            pos = np;
        }

        List<int> ans = new List<int>();
        pos = 0;
        while (pos < N)
        {
            for (int i = 1; i <= M; i++)
            {
                if (pos + i > N) continue;
                if (S[pos + i] == '1') continue;
                if (cost[pos] == cost[pos + i] + 1)
                {
                    pos += i;
                    ans.Add(i);
                    break;
                }
            }
        }
        
        Console.WriteLine(string.Join(" ",ans));
    }


    public static void Main(string[] args)
    {
        new Program().Solve();
    }
}

class HashMap<K, V> : Dictionary<K, V>
{
    new public V this[K i]
    {
        get
        {
            V v;
            TryGetValue(i, out v);
            return v;
        }
        set { base[i] = value; }
    }
}

struct E
{
    public int B, Index;

    public E(int b, int i)
    {
        B = b;
        Index = i;
    }
}


class Scanner
{
    public Scanner()
    {
        _pos = 0;
        _line = new string[0];
    }

    const char Separator = ' ';
    private int _pos;
    private string[] _line;

    #region スペース区切りで取得

    public string Next()
    {
        if (_pos >= _line.Length)
        {
            _line = Console.ReadLine().Split(Separator);
            _pos = 0;
        }

        return _line[_pos++];
    }

    public int NextInt()
    {
        return int.Parse(Next());
    }

    public long NextLong()
    {
        return long.Parse(Next());
    }

    public double NextDouble()
    {
        return double.Parse(Next());
    }

    #endregion

    #region 型変換

    private int[] ToIntArray(string[] array)
    {
        var result = new int[array.Length];
        for (int i = 0; i < array.Length; i++)
        {
            result[i] = int.Parse(array[i]);
        }

        return result;
    }

    private long[] ToLongArray(string[] array)
    {
        var result = new long[array.Length];
        for (int i = 0; i < array.Length; i++)
        {
            result[i] = long.Parse(array[i]);
        }

        return result;
    }

    private double[] ToDoubleArray(string[] array)
    {
        var result = new double[array.Length];
        for (int i = 0; i < array.Length; i++)
        {
            result[i] = double.Parse(array[i]);
        }

        return result;
    }

    #endregion

    #region 配列取得

    public string[] Array()
    {
        if (_pos >= _line.Length)
            _line = Console.ReadLine().Split(Separator);

        _pos = _line.Length;
        return _line;
    }

    public int[] IntArray()
    {
        return ToIntArray(Array());
    }

    public long[] LongArray()
    {
        return ToLongArray(Array());
    }

    public double[] DoubleArray()
    {
        return ToDoubleArray(Array());
    }

    #endregion
}

Measured memory_bytes: 16864