diff --git a/H0ngJu/README.md b/H0ngJu/README.md
index 3d9e3ddc..517e2252 100644
--- a/H0ngJu/README.md
+++ b/H0ngJu/README.md
@@ -16,5 +16,6 @@
 | 12차시 | 2024.04.09 |   DFS    |                    [ABCDE](https://www.acmicpc.net/problem/13023)                     | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/180 |
 | 13차시 | 2024.05.06 | 완전탐색 |                    [리모컨](https://www.acmicpc.net/problem/1107)                     | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/181 |
 | 14차시 | 2024.05.09 |   DFS    |                   [치킨배달](https://www.acmicpc.net/problem/15686)                   | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/183 |
+| 15차시 | 2024.05.14 |  그리디  |                    [A와 B](https://www.acmicpc.net/problem/12904)                     | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/188 |
 
 ---
diff --git "a/H0ngJu/\352\267\270\353\246\254\353\224\224/A\354\231\200 B.py" "b/H0ngJu/\352\267\270\353\246\254\353\224\224/A\354\231\200 B.py"
new file mode 100644
index 00000000..f95e7918
--- /dev/null
+++ "b/H0ngJu/\352\267\270\353\246\254\353\224\224/A\354\231\200 B.py"	
@@ -0,0 +1,27 @@
+import sys
+sys.setrecursionlimit(10**6)
+
+def input(): return sys.stdin.readline().rstrip()
+
+S = list(input())
+T = list(input())
+
+def solution(cur, target):
+    if len(cur) == len(target): # len(cur) == len(target)
+        if cur == target:
+            return 1
+        else: return 0
+    
+    elif len(cur) < len(target): # len(cur) < len(target)
+        if target[-1] ==  "A":
+            target.pop()
+            return solution(cur, target)
+        else:
+            target.pop()
+            target = target[::-1]
+            return solution(cur, target)
+
+    else: # len(cur) > len(target)
+        return 0
+
+print(solution(S, T))
\ No newline at end of file