diff --git a/Algorithms/4. Median of Two Sorted Arrays/4. Median of Two Sorted Arrays.go b/Algorithms/0004. Median of Two Sorted Arrays/4. Median of Two Sorted Arrays.go similarity index 100% rename from Algorithms/4. Median of Two Sorted Arrays/4. Median of Two Sorted Arrays.go rename to Algorithms/0004. Median of Two Sorted Arrays/4. Median of Two Sorted Arrays.go diff --git a/Algorithms/4. Median of Two Sorted Arrays/4. Median of Two Sorted Arrays_test.go b/Algorithms/0004. Median of Two Sorted Arrays/4. Median of Two Sorted Arrays_test.go similarity index 100% rename from Algorithms/4. Median of Two Sorted Arrays/4. Median of Two Sorted Arrays_test.go rename to Algorithms/0004. Median of Two Sorted Arrays/4. Median of Two Sorted Arrays_test.go diff --git a/Algorithms/4. Median of Two Sorted Arrays/README.md b/Algorithms/0004. Median of Two Sorted Arrays/README.md similarity index 100% rename from Algorithms/4. Median of Two Sorted Arrays/README.md rename to Algorithms/0004. Median of Two Sorted Arrays/README.md