#include <bits/stdc++.h>
using namespace std;
char s1[2000005],s2[2000005];
int ap[2000005];
int main()
{
    freopen("strmatch.in","r",stdin);
    freopen("strmatch.out","w",stdout);
    fgets(s1+1,2000005,stdin);
    fgets(s2+1,2000005,stdin);
    int n=strlen(s1+1),m=strlen(s2+1);
    --n;--m;
    int i,j,cnt=0;
    for(i=1;i<=m-n+1;++i)
        {for(j=1;j<=n;++j)
        if(s2[i+j-1]!=s1[j])break;
        if(j==(n+1))
        {
            cnt++;
            ap[cnt]=i-1;
        }
        }
        printf("%d\n",cnt);
        for(i=1;i<=min(1000,cnt);++i)printf("%d ",ap[i]);
    return 0;
}