#include <iostream>
#include <fstream>
#include <string.h>

using namespace std;

int main()
{
	char a[2000001],b[2000001],*p;
	int i,nr=0,c[1001];
	ifstream f("strmatch.in");
	ofstream g("strmatch.out");
	f>>a>>b;
	p=strstr(b,a);
	while (p!=NULL && nr<=1000)
	{
		c[++nr]=p-b;
		p=strstr(p+1,a);
	}
	g<<nr<<endl;
	for (i=1;i<=nr;i++)
		g<<c[i]<<" ";
	f.close();
	g.close();
	return 0;
}