#include<bits/stdc++.h>using namespace std;#pragma comment(linker, "/STACK:102400000,102400000")#define FF(i,a,b) for (int i=a;i<=b;i++)#define F(i,b,a)  for (int i=b;i>=a;i--)#define mes(a,b)  memset(a,b,sizeof(a))#define INF 0x3f3f3f3ftypedef long long ll;const int N = 2e5+10;int main(){    vector<int >A;    int n, a, b, k;    string s;    cin>>n>>a>>b>>k>>s;    for(int i=0, c=1; i<n; i++, c++) {        if(s[i]==‘1‘) c=0;        else if(c==b) c=0, A.push_back(i+1);    }    cout<<A.size()-a+1<<endl;    FF(i,0,A.size()-a) cout<<A[i]<<" ";    return 0;}