#include"bits/stdc++.h"
using namespace std;
#define REP(k,m,n) for(int (k)=(m);(k)<(n);(k)++)
#define rep(i,n) REP((i),0,(n))
using ll = long long;

template<typename Monoid, typename OperatorMonoid = Monoid>
class LazySegmentTree {
private:
    using F = function<Monoid(Monoid, Monoid)>;
    using G = function<Monoid(Monoid, OperatorMonoid, int)>;
    using H = function<OperatorMonoid(OperatorMonoid, OperatorMonoid)>;

    int sz; // 対応する配列の幅
    vector<Monoid> data;
    vector<OperatorMonoid> lazy;
    const F f; // 2区間マージ演算(data-data-ボトムアップマージ)
    const G g; // 要素,作用素マージ演算(lazy->data同位置変換時の、(data,lazy,len)の計算)
    const H h; // 作用素マージ演算　(query->lazyトップダウン伝搬時の、(lazy,query_value)の計算)
    const Monoid M1;          // モノイド単位元　(data単位元)
    const OperatorMonoid OM0; // 作用素単位元 (lazy単位元)

    void propagate(int idx, int len) {
        // 幅lenのlazy[idx]が存在するとき、値を下に流す
        if (lazy[idx] != OM0) {
            if (idx < sz) {
                lazy[(idx << 1) | 0] = h(lazy[(idx << 1) | 0], lazy[idx]);
                lazy[(idx << 1) | 1] = h(lazy[(idx << 1) | 1], lazy[idx]);
            }
            data[idx] = g(data[idx], lazy[idx], len);
            lazy[idx] = OM0;
        }
    }
    Monoid update_impl(int a, int b, const OperatorMonoid& val, int idx, int l, int r) {
        propagate(idx, r - l);
        if (r <= a || b <= l)return data[idx];
        else if (a <= l && r <= b) {
            lazy[idx] = h(lazy[idx], val);
            propagate(idx, r - l);
            return data[idx];
        }
        else return data[idx] = f(
            update_impl(a, b, val, (idx << 1) | 0, l, (l + r) >> 1),
            update_impl(a, b, val, (idx << 1) | 1, (l + r) >> 1, r)
        );
    }
    Monoid query_impl(int a, int b, int idx, int l, int r) {
        propagate(idx, r - l);
        if (r <= a || b <= l)return M1;
        else if (a <= l && r <= b)return data[idx];
        else return f(
            query_impl(a, b, (idx << 1) | 0, l, (l + r) >> 1),
            query_impl(a, b, (idx << 1) | 1, (l + r) >> 1, r)
        );
    }

public:
    // init忘れに注意
    LazySegmentTree(int n, const F f, const G g, const H h,
        const Monoid& M1, const OperatorMonoid OM0)
        :f(f), g(g), h(h), M1(M1), OM0(OM0) {
        sz = 1;
        while (sz < n)sz <<= 1;
        data.assign(2 * sz, M1);
        lazy.assign(2 * sz, OM0);
    }
    void build(const vector<Monoid>& vals) {
        rep(idx, vals.size())data[idx + sz] = vals[idx];
        for (int idx = sz - 1; idx > 0; idx--) {
            data[idx] = f(data[(idx << 1) | 0], data[(idx << 1) | 1]);
        }
    }
    Monoid update(int a, int b, const OperatorMonoid& val) {
        return update_impl(a, b, val, 1, 0, sz);
    }
    Monoid query(int a, int b) {
        return query_impl(a, b, 1, 0, sz);
    }
    Monoid operator[](const int& idx) {
        return query(idx, idx + 1);
    }
};

int main()
{
    int N, M;
    cin >> N >> M;
    string s;
    cin >> s;

    auto f = [](int l, int r) {return min(l, r); };
    auto g = [](int data, int lazy, int siz) {return min(data, lazy); };
    auto h = [](int lazy, int query) {return min(lazy, query); };

    LazySegmentTree<int> lst(N + 1, f, g, h, 1 << 29, 1 << 29);
    lst.update(N, N + 1, 0);
    for (int r = N; r > 0; r--) {
        if (s[r] == '1')continue;
        int l = max(0, r - M);
        int now = lst[r];
        lst.update(l, r, now + 1);
    }
    if (lst[0] == 1 << 29) {
        cout << -1 << endl;
        return 0;
    }
    int now = 0;
    while (now != N) {
        int next = now + 1;
        while (lst[now] - 1 != lst[next] || s[next] == '1')next++;
        cout << next - now << " ";
        now = next;
    }
    cout << endl;
    return 0;
}


Measured memory_bytes: 2688