#include <stdio.h>
#define minim(a, b) ((a < b) ? a : b)
#define NMax 2000005
char A[NMax], B[NMax];
int M,N,pi[NMax], pos[1024];
int main()
{
	int i, q = 0, n = 0;
	freopen("strmatch.in", "r", stdin);
	freopen("strmatch.out", "w", stdout);
	gets(A);
	gets(B);
	for (; (A[M] >= 'A' && A[M] <= 'Z') || (A[M] >= 'a' && A[M] <= 'z') 
			|| (A[M] >= '0' && A[M] <= '9'); ++M);
	for (; (B[N] >= 'A' && B[N] <= 'Z') || (B[N] >= 'a' && B[N] <= 'z')
			|| (B[N] >= '0' && B[N] <= '9'); ++N);
	for (i = M; i; --i) 
		A[i] = A[i-1]; 
	A[0] = ' ';
	for (i = N; i; --i) 
		B[i] = B[i-1]; 
	B[0] = ' ';	
	for (i = 2, pi[1] = 0; i <= M; ++i)
	{
		while (q && A[q+1] != A[i])
			q = pi[q];
		if (A[q+1] == A[i])
			++q;
		pi[i] = q;
	}
	for (i = 1; i <= N; ++i)
	{		
		while (q && A[q+1] != B[i])
			q = pi[q];
		if (A[q+1] == B[i])
			++q;
		if (q == M)
		{
			q = pi[M];
			++n;
			if (n <= 1000)
				pos[n] = i-M;	
		}	
	}		
	printf("%d\n", n);
	for (i = 1; i <= minim(n, 1000); ++i)
		printf("%d ", pos[i]);
	printf("\n");
	return 0;
}