TASK

Problem

#21

Input provides `w h` as integers. Compute the formula `2 * (w + h)` and print the result.

EXAMPLE

Example

Input

4 7

Output

22

LIMITS

Constraints

- Unless the statement says otherwise, integer inputs have absolute value at most 1,000,000.
- Every divisor used in the task is non-zero.
- Floating-point test values are chosen so the required arithmetic fits `float64`.

📖

LEARN Theory for this problem

+

`fmt.Scan`/`fmt.Fscan` parses whitespace-separated input into typed variables. The variable type controls how later arithmetic and comparisons behave.

Apply these rules directly to the task requirement: input provides `w h` as integers. Compute the formula `2 * (w + h)` and print the result.

💡

NEED HELP? Hints

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['Read values in exactly the order stated by the condition.', 'Check the solution on a minimal, typical, and boundary input.', 'Use the sample input `4 7` to verify parsing and confirm that the program prints exactly `22` with no extra text.']

✓

ANSWER Solution

+

package main

import (
	"fmt"
)

func main() {
	var w, h int
	fmt.Scan(&w, &h)
	result := 2 * (w + h)
	fmt.Println(result)
}