/*
ID: espr1t
TASK: 
KEYWORDS: 
*/

#include <cstdio>
#include <cstring>
#include <algorithm>
#include <vector>
#include <string>

using namespace std;
FILE* in = stdin; FILE* out = stdout;

const int MAX = 1000001;

int n, l, k;
char a[MAX];

int main(void) {
	in = fopen("substring.in", "rt"); out = fopen("substring.out", "wt");
	
	fscanf(in, "%s", a);
	n = (int)strlen(a);
	fscanf(in, "%d %d", &l, &k);
	
	int cnt = 0;
	for (int i = 0; i < l; i++)
	   cnt += (a[i] == '0');
	bool okay = cnt >= k;
	for (int i = l; i < n; i++) {
	    cnt -= (a[i - l] == '0');
	    cnt += (a[i] == '0');
	    okay &= cnt >= k;
    }
    fprintf(out, "%s\n", okay ? "Yes" : "No");
	
	return 0;
}