diff --git a/bottle.cpp b/bottle.cpp
new file mode 100644
index 0000000..c057dcf
--- /dev/null
+++ b/bottle.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+    int numBottles, numExchange;
+    cin >> numBottles >> numExchange;   // input values
+
+    int total = numBottles;
+    int empty = numBottles;
+
+    while (empty >= numExchange) {
+        int newBottles = empty / numExchange;
+        total += newBottles;
+        empty = (empty % numExchange) + newBottles;
+    }
+
+    cout << total << endl;  // output result
+    return 0;
+}