viewimage.php?id=3dafdf21f7d335ab67b1d1&no=24b0d769e1d32ca73dec84fa11d0283195504478ca9b7677dc322d30c9309b45f963835aaf4a73fac0a1665a93d9f5741e359eaf1703fafcb4599b73a098db981c358e45b69391dfb7a8629d63fc2cc5b0af389974f848a65ee1de7746464bdd5bcc190265728c8a611a9ac0

b가 c 안에 있고
a는 b 안에 있다 맞아?

그리고 d는 뭐야?