#include<fstream.h>
#include<string.h>
char a[2000010],*p,b[2000010];
long long poz[2000010],k,i;
int n=0;

int main()

{

ifstream f("strmatch.in");
ofstream g("strmatch.out");

f>>b>>a;
p=strstr(a,b);

while(p)

{ n++;
poz[++k]=(long long)(p-a);

p=strstr(p+1,b);
}

g<<n<<'\n';
for(i=1;i<=k;i++) g<<poz[i]<<" ";
f.close();
g.close();
return 0;   
}