#include <fstream>
#include <iostream>
#include <cstring>
using namespace std;
#define dmax 2000001
ifstream fin("strmatch.in");
ofstream fout("strmatch.out");
int main(){
	char a[dmax], b[dmax];
	unsigned v[1001], n=0;
	fin>>a;
	fin.get();
	fin>>b;
	char *p;
	p=b;
	do{
		p=strstr(p, a);
		if (p){
		if (n<1000)
			v[++n]=p-b;
		p=p+1;
		}	
	}while (p);
	fout<<n<<endl;
	for (int i=1;i<=n;i++)
		fout<<v[i]<<" ";
	fin.close();
	fout.close();
}