#include<fstream>
#include<cstring>
#define NMAX 2000010
#define B 83
#define MOD 666013

using namespace std;

string c1, c2;
int n, m, st[NMAX], P=1, ha, hb, fin=0;
short  a[NMAX], b[NMAX];

ifstream f("strmatch.in");
ofstream g("strmatch.out");

inline int cif(char c)
{
	if (c>='A' && c<='Z') return c-'A';
	else if (c>='a' && c<='z') return'Z'-'A'+c-'a'+1;
	return 'Z'-'A'+'z'-'a'+2+c-'0';
}

void Preprop()
{
	int i;
	n=c1.size(); m=c2.size();
	for (i=0; i<m; ++i) a[i+1]=cif(c2[i]);
	for (i=0; i<n; ++i)
	{
		b[i+1]=cif(c1[i]);
		hb=((hb*B)%MOD+b[i+1])%MOD; 
		if (i>0)P=(P*B)%MOD;
	}
	for (i=0; i<n; ++i) 
		ha=((ha*B)%MOD+a[i+1])%MOD;
}

void Solve()
{
	int i;
	if (ha==hb && !c2.compare(0, n, c1)) st[++fin]=0;
	
	for (i=2; i<=m-n+1; ++i)
	{
		//ha=(((((ha-(a[i-1]*P)%MOD)+MOD)%MOD)*B)%MOD + a[n+i-1])%MOD;
		/*pas1*/ ha=ha-((P*a[i-1])%MOD);
		if (ha<0) ha+=MOD;
		/*pas2*/ ha=(ha*B)%MOD;
		/*pas3*/ ha=(ha+a[i+n-1])%MOD;
		if (ha==hb && !c2.compare(i-1, n, c1))
		{	
			++fin;
			if (fin<1001) st[fin]=i-1;
		}
	}
}

void Write()
{
	int i, mm=min(1000, fin);
	g<<fin<<"\n";
	for (i=1; i<=mm; ++i) g<<st[i]<<" ";
}

int main()
{
	getline(f, c1);
	getline(f, c2);
	
	Preprop();
	
	Solve();
	
	Write();
	
	f.close();
	g.close();
	return 0;
}