diff --git a/code_study/Baekjoon/python/3004.py b/code_study/Baekjoon/python/3004.py
new file mode 100644
index 0000000..4890d6d
--- /dev/null
+++ b/code_study/Baekjoon/python/3004.py
@@ -0,0 +1,10 @@
+print((lambda x : (x//2+1)*(x//2+2) if x%2 else (x//2 + 1)**2)(int(input())))
+
+# 1 1*2
+# 2 2*2
+# 3 2*3
+# 4 3*3
+# 5 3*4
+# 6 4*4
+# 7 4*5
+# 8 5*5
\ No newline at end of file