#include <stdio.h>
#include <string.h>
#include <vector>
using namespace std;
char a[2000002],b[2000002],n;
std::vector<int> poz;
int main()
{
    freopen("strmatch.in","r",stdin);
    freopen("strmatch.out","w",stdout);
    scanf("%s %s",&a,&b);
    n = 0;
    while(strstr(b,a))
    {
        poz.push_back( n + strlen(b) - strlen(strstr(b,a)) );
        n = n + 1 + strlen(b) - strlen(strstr(b,a));
        strcpy(b,strstr(b,a)+1);
    }
    printf("%d\n",poz.size());
    for(int i=0;i<poz.size();++i)printf("%d ",poz[i]);
    return 0;
}