import std.stdio, std.conv, std.string, std.array, std.range, std.algorithm, std.container;
import std.math, std.random, std.bigint, std.datetime, std.format;
void main(string[] args){ if(args.length > 1) if(args[1] == "-debug") DEBUG = 1; solve(); }
void log()(){ writeln(""); } void log(T, A ...)(T t, lazy A a){ if(DEBUG) write(t, " "), log(a); } bool DEBUG = 0; 
string rstring(){ static string[] ss; while(!ss.length) ss = readln.chomp.split; string res = ss[0]; ss.popFront; return res; }
T rtype(T)(){ return rstring.to!T; } alias rint = rtype!int, rlong = rtype!long, rreal = rtype!real;
T[] rtypes(T)(int n){ return n.iota.map!(i => rtype!T()).array; } alias rint = rtypes!int, rlong = rtypes!long, rreal = rtypes!real;
T[][] rtypess(T)(int n, int m){ return n.iota.map!(i => rtypes!T(m)).array; } alias rint = rtypess!int, rlong = rtypess!long, rreal = rtypess!real;

// ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- //

void solve(){
	int n = rint;
	int m = rint;
	string s = rstring;

	int x = n;
	int[] ans;
	while(x > 0){
		bool f = 0;
		foreach(i; x - m .. x){
			log("x:", x, "i:", i);
			if(i < 0) continue;
			if(s[i] == '1') continue;
			ans ~= x - i;
			x = i;
			f = 1;
			break;
		}
		if(!f){
			"-1".writeln;
			return;
		}
	}

	int[] ansx;
	foreach_reverse(an; ans) ansx ~= an;
	ansx.map!(to!string).array.join(" ").writeln;
}
