diff --git "a/H0ngJu/DP/1,2,3 \353\215\224\355\225\230\352\270\260.py" "b/H0ngJu/DP/1,2,3 \353\215\224\355\225\230\352\270\260.py"
new file mode 100644
index 00000000..aa703837
--- /dev/null
+++ "b/H0ngJu/DP/1,2,3 \353\215\224\355\225\230\352\270\260.py"	
@@ -0,0 +1,26 @@
+import sys
+
+def input(): return sys.stdin.readline().strip()
+
+T = int(input())
+
+answer = []
+dp = [0] * (11)
+
+for index in range(T):
+    data = int(input())
+
+    for i in range(1, data + 1):
+        if i == 1:
+            dp[i] = 1
+        elif i == 2:
+            dp[i] = 2
+        elif i == 3:
+            dp[i] = 4
+        else:
+            dp[i] = dp[i-1] + dp[i-2] + dp[i-3]
+        
+    answer.append(dp[data])
+
+for a in answer:
+    print(a, end=" ")
\ No newline at end of file
diff --git a/H0ngJu/README.md b/H0ngJu/README.md
index 537e6d70..eea8f055 100644
--- a/H0ngJu/README.md
+++ b/H0ngJu/README.md
@@ -8,5 +8,6 @@
 | 4차시 | 2024.03.13 |    힙    |               [문제집](https://www.acmicpc.net/problem/1766)                | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/158 |
 | 5차시 | 2024.03.16 |   구현   |            [요세푸스 문제](https://www.acmicpc.net/problem/1158)            | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/161 |
 | 6차시 | 2024.03.19 |   스택   |               [오큰수](https://www.acmicpc.net/problem/17298)               | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/164 |
+| 7차시 | 2024.03.22 |    DP    |            [1,2,3 더하기](https://www.acmicpc.net/problem/9095)             | https://github.com/AlgoLeadMe/AlgoLeadMe-1/pull/166 |
 
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