// PotrivireaSirurilor.cpp : Defines the entry point for the console application.
//

//#include "stdafx.h"
#include <fstream>
#include <string>
#include <iostream>
#include <algorithm>

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

int main()
{
	std::string A = "", B = "";
	int* v = new int[1000];
	int hash = 0;
	int sum = 0;
	int app = 0;
	fin >> A >> B;
	int32_t m = A.length(), n = B.length();
	if (m <= n) {
		for (int i = 0; i < m; i++)
		{
			hash += int(A[i]);
			sum += int(B[i]);
		}

		for (int i = m - 1; i < n; i++) {
			if (i >= m)
				sum += int(B[i]);
			
			if (sum == hash)
				if (B.substr(i - m + 1, m) == A) {
					if (app <= 1000)
						v[app] = i - m + 1;
					app++;
				}
			sum -= int(B[i - m + 1]);
		}
	}
	fout << app << std::endl;
	if (app != 0 && m <= n) {
		for (int i = 0; i < std::min(app, 1000); i++)
			fout << v[i] << " ";
	}
	else fout << 0;

}