#include <bits/stdc++.h>
using namespace std;
int lena,lenb;
char a[1000010],b[1000010];
int kmp[1000010];
int main()
{
    scanf("%s",a + 1);
    scanf("%s",b + 1);
    lena = strlen(a + 1);
    lenb = strlen(b + 1);
    int j = 0;
    for(int i = 2;i <= lenb;i++)
    {
        while(j && b[j + 1] != b[i])j = kmp[j];
        if(b[j + 1] == b[i])j++;
        kmp[i] = j;
    }
    j = 0;
    for(int i = 1;i <= lena;i++)
    {
        while(j && b[j + 1] != a[i])j = kmp[j];
        if(b[j + 1] == a[i])j++;
        if(j == lenb)
        {
            printf("%d\n",i - lenb + 1);
            j = kmp[j];
        }
    }
    for(int i = 1;i <= lenb;i++)
        printf("%d ",kmp[i]);
    return 0;
}