diff --git a/solution/0557.Reverse Words in a String III/README_EN.md b/solution/0557.Reverse Words in a String III/README_EN.md
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+# Reverse Words in a String III
+
+Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order.
+
+## Example 1:
+```
+ Input: "Let's take LeetCode contest"
+ Output: "s'teL ekat edoCteeL tsetnoc"
+```
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diff --git a/solution/0557.Reverse Words in a String III/Solution.java b/solution/0557.Reverse Words in a String III/Solution.java
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+class Solution {
+    public String reverseWords(String s) {
+        String flag = " ";
+        StringBuilder result = new StringBuilder();
+        for (String temp : s.split(flag)) {
+            for (int i = temp.length() - 1; i >= 0; i--) {
+                result.append(temp.charAt(i));
+            }
+            result.append(flag);
+        }
+        return result.toString().substring(0, s.length());
+    }
+}
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