#include<iostream>
#include<cstdio>
using namespace std;
int l,k,flag;
string s;
int br[2100000];
int main()
{
    freopen("substring.in","r",stdin);
    freopen("substring.out","w",stdout);
    cin>>s;
    cin>>l>>k;
    if(s[1]=='0')br[1]=1;
    for(int i=1;i<s.size();i++)
    {
        if(s[i]=='0')br[i]=br[i-1]+1;
        else br[i]=br[i-1];
    }
    for(int i=s.size();i<=s.size()+l;i++)
        br[i]=br[i-1];
    for(int i=0;i<s.size()-l;i++)
    {
        if(br[i+l-1]-br[i-1]>=k);
        else //cout<<i<<endl;
           flag=1;
    }
    if(flag==0)
        cout<<"Yes"<<endl;
    else cout<<"No"<<endl;
    return 0;
}