let print = this.print || console.log;

let input = [
    '31',
    '115'];

let gets = this.gets || ((arr, index) => () => arr[index++])(input, 0);

let totalMessages = +gets();
let totalMinutes = +gets();

let billPlan = 12.00;
let addMessages = 0;
let addMinutes = 0;
let addMessCost = 0;
let addMinCost = 0;
let tax = 0;
let totalBill = 0;

if (totalMessages > 20 || totalMinutes > 60) {

    addMessages = totalMessages - 20;
    addMinutes = totalMinutes - 60;

    addMessCost = addMessages * 0.06;
    addMinCost = addMinutes * 0.10;

    tax = 0.20 * (addMessCost + addMinCost);

    totalBill = billPlan + addMessCost + addMinCost + tax;

} else {
    totalBill = billPlan;
}

print(`${addMessages} additional messages for ${addMessCost.toFixed(2)} levas`);
print(`${addMinutes} additional minutes for ${addMinCost.toFixed(2)} levas`);
print(`${tax.toFixed(2)} additional tax`);
print(`${totalBill.toFixed(2)} total bill`);