function solve(input) {

    let store = {
        brands: []
    };

    input.forEach(x => {
        let [command, brand, coffeeName, expirationDate, quantity] = x.split(', ');
        switch (command) {
            case 'IN': inCommand(brand, coffeeName, expirationDate, quantity); break;
            case 'OUT': outCommand(brand, coffeeName, expirationDate, quantity); break;
            case 'REPORT': reportCommand(); break;
            case 'INSPECTION': inspectionCommand(); break;
        }
    });

    function inCommand(brand, coffeeName, expirationDate, quantity) {
        let currentBrand = store.brands.find(x => x.brandName === brand);

        if (!currentBrand) {
            currentBrand = {
                brandName: brand,
                cofees: []
            }
            store.brands.push(currentBrand);
        }

        let currentCofee = currentBrand.cofees.find(x => x.coffeeName === coffeeName);
        if (!currentCofee) {
            currentCofee = {
                coffeeName,
                expirationDate,
                quantity
            };
            currentBrand.cofees.push(currentCofee);
        } else {
            let coffee = store.brands.find(x => x.brandName === brand).cofees.find(x => x.coffeeName === coffeeName);
            if (expirationDate > coffee.expirationDate) {
                coffee.expirationDate = expirationDate;
                coffee.quantity = quantity;
            } else if (expirationDate === coffee.expirationDate) {
                coffee.quantity += quantity;
            }
        }
    }

    function outCommand(brand, coffeeName, expirationDate, quantity) {
        let brandToCell = store.brands.find(x => x.brandName === brand);
        if (brandToCell) {
            let coffeeToCell = brandToCell.cofees.find(x => x.coffeeName === coffeeName)
            if (coffeeToCell) {
                if (coffeeToCell.expirationDate >= expirationDate) {
                    coffeeToCell.quantity -= quantity;
                }
            }
        }
    }

    function reportCommand() {
        console.log('>>>>> REPORT! <<<<<');
        store.brands.forEach(x => {
            console.log(`Brand: ${x.brandName}:`);
            x.cofees.forEach(c =>  console.log(`-> ${c.coffeeName} -> ${c.expirationDate} -> ${c.quantity}.`))
        });
    }

    function inspectionCommand() {
        console.log('>>>>> INSPECTION! <<<<<');
        store.brands.sort((a, b) => a.brandName.localeCompare(b.brandName)).forEach(x => {
            console.log(`Brand: ${x.brandName}:`);
            x.cofees.sort((a, b) => b.quantity - a.quantity).forEach(c =>  console.log(`-> ${c.coffeeName} -> ${c.expirationDate} -> ${c.quantity}.`))
        });    }
}