/***
 * Solution to Substring - CodeIT Season 6, Round 6, Problem S1
 * Author - Bozhidar Vasilev
**/

#include <iostream>
#include <fstream>

using namespace std;

bool check( string s, int l, int k )
{
    int zero_count = 0;
    for( int i = 0; i < l; ++i )
    {
        if( s[i] == '0' ) ++zero_count;
    }
    if( zero_count < k )
        return false;
    for( int i = l; i < s.size(); ++i )
    {
        if( s[i-l] == '0' ) zero_count--;
        if( s[i] == '0' ) zero_count++;
        if( zero_count < k ) return false;
    }
    return true;
}

int main()
{
	freopen("substring.in", "r", stdin);
	freopen("substring.out", "w", stdout);
    string s;
    cin >> s;
    int l, k;
    cin >> l >> k;
	if( check(s,l,k) )
	{
		cout << "Yes" << endl;
	}
	else
	{
		cout << "No" << endl;
	}
    return 0;
}