TASK

Problem

#15

Given `amount` and exchange `rate` (units of target currency per one source unit), print the converted amount.

EXAMPLE

Example

Input

100 3.5

Output

350.0

LIMITS

Constraints

All numeric input values fit in JavaScript `Number`.

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LEARN Theory for this problem

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### Currency Conversion

JavaScript arithmetic works with numeric values stored in variables. A clear solution reads the needed values, computes the formula with `+`, `-`, `*`, `/` or `**`, and prints only the final result.

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NEED HELP? Hints

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['Write the formula using named intermediate values if it contains more than one operation.', 'Verify the accumulator initial value and both loop boundaries; this is where off-by-one errors most often appear.']

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ANSWER Solution

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const fs = require('fs');
const input = fs.readFileSync(0, 'utf8').trimEnd();
let [amount, rate] = input.trim().split(/\s+/).filter(Boolean).map(Number);
let result = amount * rate;
console.log(Number.isInteger(result) ? result.toFixed(1) : result);