title: Find Perimeter Cylinder
signature: findPerimeterCylinder(diameter, height) {
test_code: import 'dart:convert';
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE 
  // ============================================
  bool validateSolution(int actual, int expected){
      return actual.toString() == expected.toString();
  }
  
  String driver(diameter, height, int expected){
      try
      {
          if (validateSolution(PLACEHOLDER_FN_NAME(diameter, height), expected)){
              return "PASSED";
          }
          return "FAILED";
      }catch(exception_object){
          return exception_object.runtimeType.toString();
      }
  }
  
  int main() {
  
      print("TEST-0...${driver(
          70, 78, 
          296)
      }");
  
      print("TEST-1...${driver(
          97, 46, 
          286)
      }");
  
      print("TEST-2...${driver(
          49, 26, 
          150)
      }");
  
      print("TEST-3...${driver(
          56, 61, 
          234)
      }");
  
      print("TEST-4...${driver(
          87, 79, 
          332)
      }");
  
      print("TEST-5...${driver(
          64, 21, 
          170)
      }");
  
      print("TEST-6...${driver(
          75, 93, 
          336)
      }");
  
      print("TEST-7...${driver(
          90, 16, 
          212)
      }");
  
      print("TEST-8...${driver(
          55, 16, 
          142)
      }");
  
      print("TEST-9...${driver(
          73, 29, 
          204)
      }");
  
      return 0;
  }
source_py: def find_perimeter_cylinder(diameter, height):
      return (2 * (diameter + height))
source_cpp: int find_perimeter_cylinder(int diameter, int height) {
    return 2 * ( diameter + height );
  }