For problem statement at 2000-2999/2100-2199/2130-2139/2137/problemA.txt this is a correct solution, but verifier at 2000-2999/2100-2199/2130-2139/2137/verifierA.go ends with All tests passed. can you fix the verifier? package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {
	in := bufio.NewReader(os.Stdin)
	out := bufio.NewWriter(os.Stdout)
	defer out.Flush()

	var t int
	fmt.Fscan(in, &t)
	for ; t > 0; t-- {
		var k, x int64
		fmt.Fscan(in, &k, &x)
		fmt.Fprintln(out, x<<k)
	}
}