#include<iostream>
#include<cstring>
using namespace std;
const int N=1e6+5;
char s1[N],s2[N];
int ne[N];
int main(){
    cin>>s1+1>>s2+1;
    int s1cut=1,s2sum=1;
    s1cut=strlen(s1+1);
    s2sum=strlen(s2+1);
    for(int i=2,j=0;i<=s2sum;i++){
        while(j && s2[i]!=s2[j+1])j=ne[j];
        if(s2[i]==s2[j+1])j++;
        ne[i]=j;
    }
    for(int i=1,j=0;i<=s1cut;i++){
        while(j && s1[i]!=s2[j+1])j=ne[j];
        if(s1[i]==s2[j+1])j++;
        if(j==s2sum){
            printf("%d\n",i-s2sum+1);
            j=ne[j];
        }
    }
    for(int i=1;i<=s2sum;i++)cout<<ne[i]<<" ";
    return 0;
}