diff --git a/src/main/c/Calculator/calculator.c b/src/main/c/Calculator/calculator.c
index c053787..7616c8b 100644
--- a/src/main/c/Calculator/calculator.c
+++ b/src/main/c/Calculator/calculator.c
@@ -24,6 +24,7 @@ double cubeRoot(double num);
 
 int main() {
     double choice, num1, num2, result, angle;
+    int r,n;
 
     do {
         displayMenu();
@@ -155,18 +156,25 @@ int main() {
                 printf("Invalid choice\n");
         }
                 }
-    } while (choice != 5);
+    } while (choice != 20);
 
     return 0;
 }
 // Function definitions
 void displayMenu() {
-    printf("\nSimple Calculator\n");
+    printf("\nAdvaced Calculator\n");
     printf("1. Add\n");
     printf("2. Subtract\n");
     printf("3. Multiply\n");
     printf("4. Divide\n");
-    printf("5. Exit\n");
+    printf("5. Exponentiation\n");
+    printf("6. Modulus\n");
+    printf("7. Logarithm\n");
+    printf("8. Potential\n");
+    printf("9. Square Root\n");
+    printf("10. Square\n");
+    printf("11. Cube\n");
+    
 }
 int add(int num1, int num2) {
     return num1 + num2;