#include <fstream>
#include<cstring>
#include<cstdlib>
using namespace std;
//ifstream f("strmatch.in");
//ofstream g("strmatch.out");
char N[100],M[100];
int i,n,k,m,x,j,pi[100],rez[100];
int main()
{
    freopen("strmatch.in","r",stdin);
    freopen("strmatch.out","w",stdout);
    gets(N+1);
    gets(M+1);
    N[0]=M[0]=13;
    n=strlen(N)-1;
    m=strlen(M)-1;
    k=0;
    pi[1]=0;
    for(i=2;i<=n;i++)
    {
        while(k&&(N[k+1]!=N[i]))
            k=pi[k];
        if(N[k+1]==N[i])
            k++;
        pi[i]=k;
    }
    k=0;
    for(i=1;i<=m;i++)
    {
        while(k&&N[k+1]!=M[i])
            k=pi[k];
        if(N[k+1]==M[i])
            k++;
        if(k==n)
        {
            k=pi[k];
            x++;
            if(x<=1000)
                rez[++j]=i-n;
        }
    }
    printf("%d\n",x);
    for(i=1;i<=j;i++)
        printf("%d ",rez[i]);
    printf("\n");
    return 0;
}