using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using static System.Math;
using System.Text;
using System.Threading;
using System.Globalization;
using System.Runtime.CompilerServices;
using Library;

namespace Program
{
    public static class ABC146F
    {
        static public int numberOfRandomCases = 0;
        static public void MakeTestCase(List<string> _input, List<string> _output, ref Func<string[], bool> _outputChecker)
        {
        }
        static public void Solve()
        {
            var N = NN;
            var M = NN;
            var S = NS;
            var seg = new LIB_LazySegTree<Tuple<int, int>, Tuple<int, int>>(N + 1, Tuple.Create(1000000000, 0), Tuple.Create(1000000000, 0), (x, y) =>
            {
                if (x.Item1 <= y.Item1) return x;
                else return y;
            }, (x, y) =>
            {
                if (x.Item1 <= y.Item1) return x;
                else return y;
            }, (x, y) =>
            {
                if (x.Item1 <= y.Item1) return x;
                else return y;
            });
            seg[0] = Tuple.Create(0, 0);
            for (var i = 0; i <= N; i++)
            {
                if (S[i] == '1') continue;
                seg.Update(i, Min(i + M + 1, N + 1), Tuple.Create(seg[i].Item1 + 1, i));
            }
            if (seg[N].Item1 == 1000000000)
            {
                Console.WriteLine(-1);
            }
            else
            {
                var now = N;
                var ans = new List<long>();
                while (now != 0)
                {
                    var before = seg[now].Item2;
                    ans.Add(now - before);
                    now = before;
                }
                ans.Reverse();
                Console.WriteLine(string.Join(" ", ans));
            }
        }
        static class Console_
        {
            static Queue<string> param = new Queue<string>();
            public static string NextString() { if (param.Count == 0) foreach (var item in Console.ReadLine().Split(' ')) param.Enqueue(item); return param.Dequeue(); }
        }
        class Printer : StreamWriter
        {
            public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }
            public Printer(Stream stream) : base(stream, new UTF8Encoding(false, true)) { base.AutoFlush = false; }
            public Printer(Stream stream, Encoding encoding) : base(stream, encoding) { base.AutoFlush = false; }
        }
        static public void Main(string[] args) { if (args.Length == 0) { Console.SetOut(new Printer(Console.OpenStandardOutput())); } var t = new Thread(Solve, 134217728); t.Start(); t.Join(); Console.Out.Flush(); }
        static long NN => long.Parse(Console_.NextString());
        static double ND => double.Parse(Console_.NextString());
        static string NS => Console_.NextString();
        static long[] NNList(long N) => Repeat(0, N).Select(_ => NN).ToArray();
        static double[] NDList(long N) => Repeat(0, N).Select(_ => ND).ToArray();
        static string[] NSList(long N) => Repeat(0, N).Select(_ => NS).ToArray();
        static IEnumerable<T> OrderByRand<T>(this IEnumerable<T> x) => x.OrderBy(_ => xorshift);
        static long Count<T>(this IEnumerable<T> x, Func<T, bool> pred) => Enumerable.Count(x, pred);
        static IEnumerable<T> Repeat<T>(T v, long n) => Enumerable.Repeat<T>(v, (int)n);
        static IEnumerable<int> Range(long s, long c) => Enumerable.Range((int)s, (int)c);
        static uint xorshift { get { _xsi.MoveNext(); return _xsi.Current; } }
        static IEnumerator<uint> _xsi = _xsc();
        static IEnumerator<uint> _xsc() { uint x = 123456789, y = 362436069, z = 521288629, w = (uint)(DateTime.Now.Ticks & 0xffffffff); while (true) { var t = x ^ (x << 11); x = y; y = z; z = w; w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)); yield return w; } }
    }
}namespace Library {
    class LIB_LazySegTree<T, E>
    {
        int n, height;
        T ti;
        E ei;
        Func<T, T, T> f;
        Func<T, E, T> g;
        Func<E, E, E> h;
        T[] dat;
        E[] laz;
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public LIB_LazySegTree(long _n, T _ti, E _ei, Func<T, T, T> _f, Func<T, E, T> _g, Func<E, E, E> _h)
        {
            n = 1; height = 0;
            while (n < _n) { n <<= 1; ++height; }
            ti = _ti;
            ei = _ei;
            f = _f;
            g = _g;
            h = _h;
            dat = Enumerable.Repeat(ti, n << 1).ToArray();
            laz = Enumerable.Repeat(ei, n << 1).ToArray();
            for (var i = n - 1; i > 0; i--) dat[i] = f(dat[(i << 1) | 0], dat[(i << 1) | 1]);
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public LIB_LazySegTree(IEnumerable<T> l, T _ti, E _ei, Func<T, T, T> _f, Func<T, E, T> _g, Func<E, E, E> _h) : this(l.Count(), _ti, _ei, _f, _g, _h)
        {
            var idx = 0;
            foreach (var item in l) dat[n + idx++] = item;
            for (var i = n - 1; i > 0; i--) dat[i] = f(dat[(i << 1) | 0], dat[(i << 1) | 1]);
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        T Reflect(long i) => laz[i].Equals(ei) ? dat[i] : g(dat[i], laz[i]);
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        void Eval(long i)
        {
            if (laz[i].Equals(ei)) return;
            laz[(i << 1) | 0] = h(laz[(i << 1) | 0], laz[i]);
            laz[(i << 1) | 1] = h(laz[(i << 1) | 1], laz[i]);
            dat[i] = Reflect(i);
            laz[i] = ei;
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        void Thrust(long i)
        {
            for (var j = height; j > 0; j--) Eval(i >> j);
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        void Recalc(long i)
        {
            while ((i >>= 1) > 0) dat[i] = f(Reflect((i << 1) | 0), Reflect((i << 1) | 1));
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public void Update(long l, long r, E v)
        {
            Thrust(l += n); Thrust(r += n - 1);
            for (long li = l, ri = r + 1; li < ri; li >>= 1, ri >>= 1)
            {
                if ((li & 1) == 1) { laz[li] = h(laz[li], v); ++li; }
                if ((ri & 1) == 1) { --ri; laz[ri] = h(laz[ri], v); }
            }
            Recalc(l); Recalc(r);
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public T Query(long l, long r)
        {
            Thrust(l += n); Thrust(r += n - 1);
            var vl = ti; var vr = ti;
            for (long li = l, ri = r + 1; li < ri; li >>= 1, ri >>= 1)
            {
                if ((li & 1) == 1) vl = f(vl, Reflect(li++));
                if ((ri & 1) == 1) vr = f(Reflect(--ri), vr);
            }
            return f(vl, vr);
        }
        public T this[long idx]
        {
            [MethodImpl(MethodImplOptions.AggressiveInlining)]
            get { Thrust(idx += n); return Reflect(idx); }
            [MethodImpl(MethodImplOptions.AggressiveInlining)]
            set { Thrust(idx += n); dat[idx] = value; laz[idx] = ei; Recalc(idx); }
        }
    }
}


Measured memory_bytes: 34176