diff --git a/Broken Calculator b/Broken Calculator
new file mode 100644
index 0000000000..60e23fa47a
--- /dev/null
+++ b/Broken Calculator	
@@ -0,0 +1,28 @@
+/*
+ * @Descripttion: boring life && prevent age-related memory loss.
+ * @Version: 1.0.0
+ * @Author: zhaoyang.liang
+ * @Github: https://github.com/LzyRapx
+ * @Date: 2019-09-14 17:52:30
+ * @LastEditors: zhaoyang.liang
+ * @LastEditTime: 2019-09-14 17:52:30
+ */
+class Solution {
+public:
+    int brokenCalc(int X, int Y) { // 1 <= X, Y <= 1e9
+        if(X >= Y) {
+            return X - Y;
+        }
+        int ans = 0;
+        while(X < Y) {
+            ans += 1;
+           if(Y % 2 == 1) {
+               Y++;
+               continue;
+           }
+            Y = Y / 2;
+        }
+        return ans + X - Y;
+        
+    }
+};