For problem statement at 1000-1999/1600-1699/1670-1679/1672/problemF1.txt this is a correct solution, but verifier at 1000-1999/1600-1699/1670-1679/1672/verifierF1.go ends with case 1 failed: sadness 2 expected 3

exit status 1 can you fix the verifier? ```go
package main

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

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 n int
		fmt.Fscan(in, &n)
		a := make([]int, n)
		for i := 0; i < n; i++ {
			fmt.Fscan(in, &a[i])
		}
		idx := make([]int, n)
		for i := 0; i < n; i++ {
			idx[i] = i
		}
		sort.Slice(idx, func(i, j int) bool {
			return a[idx[i]] < a[idx[j]]
		})
		b := make([]int, n)
		for i := 0; i < n; i++ {
			next := (i + 1) % n
			b[idx[i]] = a[idx[next]]
		}
		for i := 0; i < n; i++ {
			fmt.Fprint(out, b[i], " ")
		}
		fmt.Fprintln(out)
	}
}
```