(function solve() {

        let recipes = {
            apple: {'carbohydrate': 1, 'flavour': 2},
            coke: {'carbohydrate': 10, 'flavour': 20},
            burger: {'carbohydrate': 5, 'fat': 7, 'flavour': 3},
            omelet: {'protein': 5, 'fat': 1, 'flavour': 1},
            cheverme: {'protein': 10, 'carbohydrate': 10, 'fat': 10, 'flavour': 10}
        };

        let microElements = {
            protein: 0,
            carbohydrate: 0,
            fat: 0,
            flavour: 0
        };

        let result = function (input) {
            let [command, arg2, quantity] = input.split(' ').filter(x=>x != '');

            let implement = (function () {
                return {
                    restock: (microelement, quantity) => {
                        microelement = microelement.toLowerCase();
                        microElements[microelement] += Number(quantity);
                        return "Success";
                    },

                    prepare: (recipe, quantity) => {
                        recipe = recipe.toLowerCase();
                        let mealQuantity = quantity;
                        let insufficient = '';
                        for (let prop of Object.keys(recipes[recipe])) {
                            let quantity = recipes[recipe][prop]*Number(mealQuantity);
                            if (quantity > microElements[prop]) {
                                return `Error: not enough ${prop} in stock`;
                            }
                        }

                        Object.keys(recipes[recipe]).forEach(key=> {
                            let quantity = recipes[recipe][key]*Number(mealQuantity);
                            microElements[key] -= quantity;
                        });

                        return 'Success';
                    },

                    report: () => `protein=${microElements.protein} carbohydrate=${microElements.carbohydrate} fat=${microElements.fat} flavour=${microElements.flavour}`
                }
            })();

            return implement[command](arg2, quantity);

        };

        return result;
    })()