#include <bits/stdc++.h>
using namespace std;
ifstream f("strmatch.in");
ofstream g("strmatch.out");
char a[2000001],b[2000001];
int n,m,i,j,q;
vector<int> v;
int main()
{
    f>>a;
    f.get();
    f>>b;
    n=strlen(a);
    m=strlen(b);
    while(q < m)
    {
        if(a[j]==b[q])
        {
            i=q;
            while(a[j]==b[i]&&j<n&&i<m)
            {
                i++;
                j++;
            }
            if(j==n)
                v.push_back(i-j);
            j=0;
        }
        q++;
    }
    if(v.size()<1001)
        g<<v.size()<<"\n";
    else
        g<<1000<<"\n";
    for(i=0; i<v.size()&&i<1000; ++i)
        g<<v[i]<<" ";
    return 0;
}