diff --git a/doitchuu/MakeMinimumValue.js b/doitchuu/MakeMinimumValue.js
new file mode 100644
index 0000000..7dbc112
--- /dev/null
+++ b/doitchuu/MakeMinimumValue.js
@@ -0,0 +1,6 @@
+function solution(A, B) {
+    const sortedA = A.sort((a, b) => a - b);
+    const sortedB = B.sort((a, b) => b - a);
+    
+    return sortedA.reduce((acc, cur, index) => acc + (cur * sortedB[index]), 0);
+}
diff --git a/doitchuu/RepeatBinaryTransformation.js b/doitchuu/RepeatBinaryTransformation.js
new file mode 100644
index 0000000..9cbedaf
--- /dev/null
+++ b/doitchuu/RepeatBinaryTransformation.js
@@ -0,0 +1,17 @@
+function solution(s) {
+    if (s === "1") {
+        return [0, 0];
+    }
+
+    let count = 0;
+    let zeroCount = 0;
+    
+    while (s !== "1") {
+        const length = s.replaceAll("0", "").length;
+        zeroCount += s.length - length;
+        s = length.toString(2);
+        count++;
+    }
+    
+    return [count, zeroCount];
+}