#include <bits/stdc++.h>

using namespace std;
ifstream fin("strmatch.in");
ofstream fout("strmatch.out");
char c[2000002],x;
int n,i,k,p[2000002],nr,v[1001];
int main()
{
    fin>>(c+1);
    n=strlen(c+1);
    for(i=2;i<=n;i++)
    {
        for(;k!=0&&c[k+1]!=c[i];)
            k=p[k];
        if(c[k+1]==c[i])
            k++;
        p[i]=k;
    }
    i=1;
    k=0;
    while(fin>>x)
    {
        i++;
        for(;k!=0&&c[k+1]!=x;)
            k=p[k];
        if(c[k+1]==x)
            k++;
        if(k==n&&nr<1000)
        {
            nr++;
            v[nr]=i;
        }
    }
    fout<<nr<<'\n';
    for(i=1;i<=nr;i++)
        fout<<v[i]-n-1<<" ";
    return 0;
}