diff --git a/YIM2UL2ET/README.md b/YIM2UL2ET/README.md
index 3927de4..c5601a7 100644
--- a/YIM2UL2ET/README.md
+++ b/YIM2UL2ET/README.md
@@ -2,13 +2,14 @@
 
 | 차시 |    날짜    | 문제유형 | 링크 | 풀이 |
 |:----:|:---------:|:----:|:-----:|:----:|
-| 1차시 | 2024.02.12 |  그리디  | [BOJ 18310](https://www.acmicpc.net/problem/18310)  | [BOJ 18310 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/3) |
-| 2차시 | 2024.02.15 |  그리디  | [BOJ 1263](https://www.acmicpc.net/problem/1263)  | [BOJ 1449 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/7) |
-| 3차시 | 2024.02.18 |  스택  | [BOJ 2504](https://www.acmicpc.net/problem/2504)  | [BOJ 2504 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/9) |
-| 4차시 | 2024.02.21 |  덱  | [BOJ 1021](https://www.acmicpc.net/problem/1021)  | [BOJ 1021 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/12) |
-| 5차시 | 2024.02.24 |  큐  | [BOJ 1158](https://www.acmicpc.net/problem/1158)  | [BOJ 1158 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/16) |
-| 6차시 | 2024.02.27 |  정렬  | [BOJ 1599](https://www.acmicpc.net/problem/1599)  | [BOJ 1599 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/21) |
-| 7차시 | 2024.03.01 |  재귀  | [BOJ 2705](https://www.acmicpc.net/problem/2705)  | [BOJ 2705 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/23) |
-| 8차시 | 2024.03.04 |  재귀  | [BOJ 10994](https://www.acmicpc.net/problem/10994)  | [BOJ 10994 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/27) |
-| 9차시 | 2024.03.07 |  임의 정밀도 / 큰 수 연산 && 재귀  | [BOJ 1914](https://www.acmicpc.net/problem/1914)  | [BOJ 1914 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/29) |
+| 01차시 | 2024.02.12 |  그리디  | [BOJ 18310](https://www.acmicpc.net/problem/18310)  | [BOJ 18310 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/3) |
+| 02차시 | 2024.02.15 |  그리디  | [BOJ 1263](https://www.acmicpc.net/problem/1263)  | [BOJ 1449 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/7) |
+| 03차시 | 2024.02.18 |  스택  | [BOJ 2504](https://www.acmicpc.net/problem/2504)  | [BOJ 2504 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/9) |
+| 04차시 | 2024.02.21 |  덱  | [BOJ 1021](https://www.acmicpc.net/problem/1021)  | [BOJ 1021 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/12) |
+| 05차시 | 2024.02.24 |  큐  | [BOJ 1158](https://www.acmicpc.net/problem/1158)  | [BOJ 1158 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/16) |
+| 06차시 | 2024.02.27 |  정렬  | [BOJ 1599](https://www.acmicpc.net/problem/1599)  | [BOJ 1599 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/21) |
+| 07차시 | 2024.03.01 |  재귀  | [BOJ 2705](https://www.acmicpc.net/problem/2705)  | [BOJ 2705 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/23) |
+| 08차시 | 2024.03.04 |  재귀  | [BOJ 10994](https://www.acmicpc.net/problem/10994)  | [BOJ 10994 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/27) |
+| 09차시 | 2024.03.07 |  임의 정밀도 / 큰 수 연산 && 재귀  | [BOJ 1914](https://www.acmicpc.net/problem/1914)  | [BOJ 1914 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/29) |
+| 10차시 | 2024.03.10 |  스택  | [BOJ 1406](https://www.acmicpc.net/problem/1406)  | [BOJ 1406 풀이](https://github.com/AlgoLeadMe/AlgoLeadMe-7/pull/31) |
 ---
diff --git "a/YIM2UL2ET/\354\212\244\355\203\235/10\354\260\250\354\213\234 - BOJ 1406.cpp" "b/YIM2UL2ET/\354\212\244\355\203\235/10\354\260\250\354\213\234 - BOJ 1406.cpp"
new file mode 100644
index 0000000..cd6939d
--- /dev/null
+++ "b/YIM2UL2ET/\354\212\244\355\203\235/10\354\260\250\354\213\234 - BOJ 1406.cpp"	
@@ -0,0 +1,28 @@
+#include <iostream>
+#include <stack>
+
+int main(void)
+{
+    std::ios_base::sync_with_stdio(false);
+    std::cin.tie(NULL);
+    
+    int n;
+    char ch;
+    std::string str;
+    std::stack <char> stk1, stk2;
+
+    std::cin >> str >> n;
+    for (int i = 0; i < str.size(); i++) stk1.push(str[i]);
+    
+    for (int i = 0; i < n; i++) {
+        std::cin >> ch;
+        if (ch == 'L' && !stk1.empty()) stk2.push(stk1.top()), stk1.pop();
+        else if (ch == 'D' && !stk2.empty()) stk1.push(stk2.top()), stk2.pop();
+        else if (ch == 'B' && !stk1.empty()) stk1.pop();
+        else if (ch == 'P') std::cin >> ch, stk1.push(ch);
+    }
+
+    while(stk1.size() > 0) stk2.push(stk1.top()), stk1.pop();
+    while(stk2.size() > 0) std::cout << stk2.top(), stk2.pop();
+    return 0;
+}
\ No newline at end of file