#include <fstream>
#include <cstring>
#define Nmax 2000000
using namespace std;

ifstream fin("strmatch.in");
ofstream fout("strmatch.out");


char a[Nmax], b[Nmax];
int nr = 0, poz[Nmax];
int i = 0;

int main()
{
	fin.getline(a, Nmax);
	fin.getline(b, Nmax);
	char *p = strstr(b, a);
	while(p)
	{
		nr++;
		poz[++i] = strlen(b) - strlen(p);
		p = strstr(p + 1, a);
	}
	fout << nr << '\n';
	for(int k = 1; k <= i; k++)
		fout << poz[k] << " ";
	fin.close();
	fout.close();
	return 0;
}