#include <bits/stdc++.h>
using namespace std;
ifstream fin("strmatch.in");
ofstream fout("strmatch.out");
#define minim(a, b) ((a < b) ? a : b)
#define NMax 2000005

int M, N;
char A[NMax], B[NMax];
int pi[NMax], pos[1024];

void make_prefix(void)
{
	int i, q = 0;

	for (i = 2, pi[1] = 0; i <= M; ++i)
	{
		while (q && A[q + 1] != A[i])
			q = pi[q];
		if (A[q + 1] == A[i])
			++q;
		pi[i] = q;
	}
}

int main(void){
	int i, q = 0, n = 0;
	fin.getline(A, NMax);
	fin.getline(B, NMax);
	for (; (A[M] >= 'A' && A[M] <= 'Z') || (A[M] >= 'a' && A[M] <= 'z')
		|| (A[M] >= '0' && A[M] <= '9'); ++M);
	for (; (B[N] >= 'A' && B[N] <= 'Z') || (B[N] >= 'a' && B[N] <= 'z')
		|| (B[N] >= '0' && B[N] <= '9'); ++N);
	for (i = M; i; --i) A[i] = A[i - 1]; A[0] = ' ';
	for (i = N; i; --i) B[i] = B[i - 1]; B[0] = ' ';

	make_prefix();

	for (i = 1; i <= N; ++i)
	{
		while (q && A[q + 1] != B[i])
			q = pi[q];
		if (A[q + 1] == B[i])
			++q;
		if (q == M)
		{
			q = pi[M];
			++n;
			if (n <= 1000)
				pos[n] = i - M;
		}
	}

	fout << n << "\n";
	for (i = 1; i <= minim(n, 1000); ++i)
		fout << pos[i] << " ";
	fout << "\n";

	return 0;
}