diff --git "a/leetcode3/\354\235\264\354\247\204\355\235\254/4088. Difference Between Peaks and Valleys.java" "b/leetcode3/\354\235\264\354\247\204\355\235\254/4088. Difference Between Peaks and Valleys.java"
new file mode 100644
index 00000000..bdada64b
--- /dev/null
+++ "b/leetcode3/\354\235\264\354\247\204\355\235\254/4088. Difference Between Peaks and Valleys.java"	
@@ -0,0 +1,17 @@
+class Solution {
+    public int peakValleyDifference(int[] nums) {
+        int peakSum = 0;
+        int valleySum = 0;
+        int n = nums.length;
+        
+        for (int i = 1; i < n - 1; i++) {
+            if (nums[i] > nums[i-1] && nums[i] > nums[i+1]) {
+                peakSum += nums[i];
+            } else if (nums[i] < nums[i-1] && nums[i] < nums[i+1]) {
+                valleySum += nums[i];
+            }
+        }
+        
+        return peakSum - valleySum;
+    }
+}
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