#include<stdio.h>
#include<string.h>
#include<vector>
using namespace std;
vector<int> sol;
char a[2000005],b[2000005];
int strmatch(char *s,char *s1)
{
	char *p;int nr=0;
	p=strstr(s,s1);
	while(p)
	{
		nr++;
		sol.push_back(p-s);
		p=strstr(p+1,s1);
	}
	return nr;
}
int main()
{
	//freopen("strmatch.in","r",stdin);
	//freopen("strmatch.out","w",stdout);
	gets(a);
	gets(b);
	printf("%d\n",strmatch(b,a));
	for(int i=0;i<sol.size();i++)
		printf("%d ",sol[i]);
	return 0;
}