For problem statement at 1000-1999/1500-1599/1520-1529/1523/problemC.txt this is a correct solution, but verifier at 1000-1999/1500-1599/1520-1529/1523/verifierC.go ends with All tests passed can you fix the verifier? ```go
package main

import (
	"bufio"
	"os"
	"strconv"
)

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Split(bufio.ScanWords)
	writer := bufio.NewWriter(os.Stdout)
	defer writer.Flush()

	if !scanner.Scan() {
		return
	}
	t, _ := strconv.Atoi(scanner.Text())

	for i := 0; i < t; i++ {
		if !scanner.Scan() {
			break
		}
		n, _ := strconv.Atoi(scanner.Text())

		stack := make([]int, 0, n)

		for j := 0; j < n; j++ {
			if !scanner.Scan() {
				break
			}
			val, _ := strconv.Atoi(scanner.Text())

			if val == 1 {
				stack = append(stack, 1)
			} else {
				for len(stack) > 0 && stack[len(stack)-1] != val-1 {
					stack = stack[:len(stack)-1]
				}
				if len(stack) > 0 {
					stack[len(stack)-1] = val
				}
			}

			for k, v := range stack {
				if k > 0 {
					writer.WriteByte('.')
				}
				writer.WriteString(strconv.Itoa(v))
			}
			writer.WriteByte('\n')
		}
	}
}
```